Common Error Codes for Dishwasher

Clogged filter error

Solution:

The 1E (or IE) error code appears when water is not making it through the filter (Waterwall models). Clean the fine filter at the bottom of the dishwasher. If the code returns please call appliance technician. 

Pump operation error

Solution:

The 3C error code appears when the pump has failed. Turn off the dishwasher and then try to start the cycle again. If the code returns please call appliance technician. 

High temperature water supply error

Solution:

The 3E error code appears when the water is too hot. Verify the hot water supply is not set above 80 °C (176 °F). If it isn’t, but the error still occurs please call appliance technician. 

Water supply error

Solution:

The 4C or 4E error code appears when the dishwasher is not getting water at the pressure or temperature that it needs. Verify the water pressure and temperature meets the water supply requirements, Also, make sure the water supply is turned on. If the error still occurs, please call appliance technician. 

Drain error

Solution:

The 5C, SC, 5E, or SE error code appears when the dishwasher can’t drain. If you recently installed or moved the dishwasher, make sure the drain hose is not pinched or kinked.

Waterwall reflector error

Solution:

The 7E error code appears when the reflector is not able to move correctly. If you have recently unboxed the dishwasher, verify the packing tape has been removed from the waterwall reflector, allowing it to move. Check that the reflector is installed in the correct position and is not blocked.

Low water level error

Solution:

The 9E error code appears when there is not enough water in the dishwasher. Empty the dishwasher. Add detergent, and then run a normal cycle. If the error still occurs, switch off power to the dishwasher at the circuit breaker, please call appliance technician. 

Access Point mode

Solution:

The AP error code appears when the dishwasher is in Access Point Mode to assist with connecting to a mobile device. If you are not trying to connect it, turn off the dishwasher and turn it back on again.

Button error

Solution:

The bE or 6E error code appears when the panel detects a stuck button. Turn off the dishwasher, and touch every button on the panel. If any button is not working correctly, or the error code returns after turning the dishwasher back on, please call appliance technician. 

Communication error

Solution:

The CE error code appears when the control panel is unable to communicate with the rest of the dishwasher. Turn off the dishwasher and try to start it again. If the error continues, please call appliance technician. 

High temperature heater error

Solution:

The HC, 1E, or IE error code appears when the temperature inside the dishwasher is too hot (Rotary models). Switch the power to the dishwasher off (30 seconds) and then on again, at the circuit breaker. Empty the dishwasher, fill the detergent drawer, and then start a normal cycle. If the error occurs again, please call appliance technician. 

Heater error

Solution:

The HE error code appears when the temperature inside the dishwasher is being detected incorrectly. Empty the dishwasher, add detergent, and then run a normal cycle. If the error still occurs, switch off power to the dishwasher at the circuit breaker, please call appliance technician. 

Leakage error

Solution:

The LC or LE error code appears when the dishwasher’s leak sensor detects moisture or the water reflector is blocked (Waterwall models only). When this code occurs, the dishwasher will turn itself on and will not turn off. During this time, it will attempt to drain the water away.

f you’re certain that there is not a leak, and if you recently moved the dishwasher, some water may have splashed near the sensor. Give it time to dry. If the noise of the dishwasher is bothersome, unplug it or turn it off at the circuit breaker. If you’ve recently connected the dishwasher to a garbage disposal, make sure the garbage disposal cap is removed. Finally, make sure the detergent dispenser has not been overfilled or extra detergent added outside of the dispenser.

If you continue to get the error, please call appliance technician. 

Over-level water error

Solution:

The OC, 0C, or oE error code appears when there is more water in the dishwasher than there should be. This is often very closely related to a drain issue. If you moved the dishwasher recently, make sure the drain hose isn’t kinked or pinched.

Zone Wash error

Solution:

The PC error code appears when the Zone Wash function is not operating correctly. Turn off the dishwasher and then try to start the cycle again. If the error still occurs, please call appliance technician. 

Half load function error

Solution:

The PE error code appears when the Half load function is not performing correctly. Empty the dishwasher, add detergent, and run a half load cycle. If the error still occurs, switch off power to the dishwasher at the circuit breaker, please call appliance technician. 

Temperature sensor error

Solution:

The tE error code appears when the temperature inside the dishwasher is being detected incorrectly. Empty the dishwasher, add detergent, and run a normal cycle. If the error still occurs, switch off power to the dishwasher at the circuit breaker, please call appliance technician. 

The unit is detecting a drain issue.

Solution:

• This is usually from clogged food or possibly an installation issue.
• If there is water at the bottom of the tub in the dishwasher, try a DRAIN ONLY to drain the water.
• To complete a DRAIN ONLY, look at the buttons on the display and you will see a CANCEL & DRAIN under 2 buttons.
• Press those 2 buttons at the same time to start the CANCEL & DRAIN cycle.

If you do not have a CANCEL & DRAIN option then simply start a cycle, let it run for 45 seconds and then turn the dishwasher off. On LG dishwashers, the first 45 seconds of a wash cycle is actually draining.
This should clear your error code OE. If not please call appliance technician. 

Solution:

1. Press power button and turn dishwasher off
2. Turn the circuit breaker or unplug the dishwasher for 10 to 15 seconds.
3. Plug the dishwasher back in or turn the circuit breaker back on.
4. Press the power button to turn the dishwasher on.
5. Start a new cycle and see if that clears the error.

   This should fix the error code LE.

Heating or heater issue.

Solution:

This can happen if the dishwasher was not able to heat the water or if the water became over heated.

1. Press power button and turn off your dishwasher.
2. Unplug the dishwasher for 10 seconds.
3. Plug the dishwasher back in.
4. Press the power on button.
5. Start a new wash cycle.

This should repair the HE error code

Unit has a water fill error.

Solution:

Dishwasher has found there is excess water in the unit, and the drain pump is automatically turned on.

1. Press the power button and turn the dishwasher off.
2. Unplug the dishwasher for 10 seconds.
3. Plug the dishwasher back in.
4. Press the POWER button to turn the dishwasher back on.
5. Start a new wash cycle.

This should repair the FE error code.

Error with the motor’s operation.

Solution:

1. Press the power button and turn the dishwasher off.
2. Unplug the dishwasher and wait 10 seconds.
3. Plug the dishwasher back in.
4. Press the POWER button to turn the dishwasher on.
5. Start a new wash cycle.

This should clear the CE error code.

There may be a leak in the unit.

Solution:

These leaks are a result of improper dishwasher installation, wrong detergent or improper loading of dishes.

1. Check the drain hose.
2. If the drain hose outlet is installed lower than the base of your LG dishwasher, this could cause unwanted draining.
3. This can cause an E1 error if the drain hose is lower than base.
4. Check the drain hose for a siphoning issue.
5. The height of the drain hose end must be over 10” from the bottom of the dishwasher to avoid water being siphoned out of the tub.
6. Check your drain hose for cracks or damage that may cause water to leak.
7. Replace dishwasher drain hose if the above issues are present.

Power failure has occurred.

Solution:

• This feature is to protect your dishwasher in case of a power interruption.
• When power is restored, press and hold any button on your dishwasher controls for 10 seconds to clear the display.
• When the PF error appears many times on your dishwasher and no power outage has taken place, this may be caused by a circuit breaker being unable to handle the electrical requirements of the dishwasher.
• The dishwasher must be powered by a dedicated circuit breaker.

Thermal error.

Solution:

• This happens if the water temperature is above 194 degrees Fahrenheit.
• This error code can also happen if there is an issue with the thermistor.
• Usually, the tE error code means that your dishwasher needs a new thermistor.

Water level or inlet error.

Solution:

Water is not entering the dishwasher properly.

An IE error code on your LG dishwasher indicates that the water level did not get high enough after filling for 10 minutes.

1. Make sure the water supply valve is in the open position.
2. Be sure the water supply line isn’t bent, kinked, or clogged.
3. Remove the water supply line on the dishwasher and run water into a pail or similar to test the flow of water.
4. If still washer has error, replace the water inlet valve.

Diagnostics test mode

It is displayed when you entered diagnostics test mode and retrieved fault codes from memory.

Issue with the temperature sensor or thermistor

Solution:

it is displayed when there was an issue with the temperature sensor or thermistor, in order to access the sensor you need to remove the dishwasher front cover and locate thermistor under the tub.

Dishwasher cannot fill with water

Solution:

It is displayed when the dishwasher cant fill with water. If the dishwasher’s water supply is fully open but the dishwasher cannot fill with water then turn off the water supply and unplug the dishwasher.

Remove the water fill line and verify that the water inlet valve is connected. If so, replace the water valve. Don’t try to clean the screen as it can make the problem worse because it can get stuck open from gunk and either flood or overfill.

Water flow sensor error

Solution:

This error related to water flow sensor, most likely caused by calcium builds-up on the sensor wheel. it’s just can’t spin and unable to measure how much water entering the dishwasher. In this case you just need to replace the sensor. There is no way to clean it.

Dishwasher is overfilled with water

Solution:

It is displayed when the dishwasher is overfilled with water, in order to check you must unplug and re-plug the dishwasher if the problem continues, check the float switch.

Fault in the Aqua Sensor

Solution:

It is displayed when there was a fault in the Aqua Sensor, the aqua sensor is responsible for detecting whenever the water is clean or dirty and controls the water turbidity. please call appliance technician. 

Issue with the heating element occurred

Solution:

It is displayed when an issue with the heating element occurred. In some cases, it may be caused by solder joint on the heater relay on the control board. Replace the heating Element.

Dishwasher leaking and triggered a flood sensor

Solution:

This error code means, that your dishwasher leaking and triggered a flood sensor. It can be caused by one of the water hoses been slipped off or one of the clamps that holds these hoses got weak. You need to pull the dishwasher out from its place and remove side panels to see where its leaking from.

Residual water left in the sump

Solution:

This error caused when there is residual water left in the sump due to blockage of the fine filter. please call appliance technician. 

Drain error

Solution:

It is displayed when there was a drain error. Usually due to cloggage in drain pump. If you can hear pump running but not draining, check back valve or check valve to make sure nothing got stuck in there.

if you hear pump humming and not spinning, then drain pump impeller jammed by broken glass or bones, or something else. please call appliance technician. 

24 hour delay

Solution:

24 hour delay, unplug the dishwasher then press and hold the start button for around 10 seconds to reset it once turned back on

Number +
H

The dishwasher is in Delay Start mode.

Solution:

Points to the delayed wash start mode. The feature is very useful when you want to take advantage of off-peak hydro rates, schedule the dishwashing to work when nobody in the house is using the shower, or simply want to have your dishes done by a certain time. You have to keep in mind that unlatching the door does not cancel the delayed start mode.

The pump out during drain has exceeded 2 minutes.

Solution:

Clean the air gap. Replace or reposition the hose. Run the disposer to clean it out. If problem persists, contact service.

The total pump out cycle exceeds 7 minutes.

Solution:

Press RESET to stop the beep.

The dishwasher will not drain.

Solution:

Disconnect power, reset the dishwasher, If error still occurs please call appliance technician. 

Machine filled twice after a power failure. Float switch stuck or failed. Clogged drain or sump.

Solution:

Touch start and then cancel/reset. Tap on the float cover to unstick the float. This is the plastic cover that looks like an upside down cup in the front left corner of the floor of the dishwasher. Also, check the sump area in the back bottom of the tub for debris. It looks like an upside down silverware basket and can become clogged. If the problem persists, please call appliance technician. 

The pump out time is too short.

Solution:

Make sure that the water supply is turned on. Try the same cycle again. Tap on the float cover to unstick the float. This is the plastic cover that looks like an upside down cup in the front left corner of the floor of the dishwasher.

Water temperature is too low.

Solution:

Water temperature coming into the dishwasher should be at least 120 degrees F. Run the faucet adjacent to the dishwasher prior to starting the dishwasher to purge any cold water from the line. Adjust the water heater temperature. Don’t use the washing machine or take showers when using the dishwasher. Use options on the dishwasher to cause the machine to run longer and thus add more heat.

The dishwasher’s water temperature sensor circuit has become inoperative.

Solution:

Disconnect the power at the circuit breaker for about 30 seconds and then reset the dishwasher. If the problem persists, please call appliance technician. 

This display indicates that the detergent cup is blocked from opening fully.

Solution:

Remove obstruction (i.e. silverware, pan). Relatch door and wait 30 seconds for cup to open.

Indicates that there has been a power failure to dishwasher.

Solution:

Simply select the desired cycle and options, press the Start pad and the dishwasher will function normally.

The detergent cup has not been closed. It’s a reminder to add detergent and latch the cup closed.

Solution:

When the problem occurs, the cycle will not start, but you can override by pressing the start pad again without opening the door. If this problem persists, please call appliance technician. 

Possible leak is detected.

Solution:

The cycle will be cancelled on models with leak detection. If LEAK DETECTED is displayed, please call appliance technician. 

Possible leak detected on models with “Floor Protect with Alert” feature. All others: The unit’s control needs to be reset.

Solution:

The dishwasher will not start, please call appliance technician. 

Indicates a low water situation.

Solution:

If H2O only appears during 1-Hour Wash, schedule service. Feel free to run any other cycle until that update is done. If H2O appears during other wash cycles (AutoSense, Heavy, Normal or Light), then double-check that the inlet water hose is not kinked. If neither above apply, please call appliance technician. 

Stuck relay on the electronic control board.

Solution:

Shut off power to the dishwasher for 5 minutes. If the code resumes when you restore power, check the wiring connected to the control board for damage and repair any broken wires. Measure the resistance through all components connected to the control board using the tech sheet as a guide. You can find the tech sheet behind the bottom front toe panel of the dishwasher. Replace any defective components. If the wiring and components are okay, replace the electronic control board.

Damaged or corrupted memory on control board. Incompatible software components inside microprocessor.

Solution:

Shut off power to the dishwasher for 5 minutes. If the code resumes when you restore power, replace the electronic control board.

Stuck button on the user interface control.

Solution:

Check all buttons on the user interface control for a response. If one or more of the buttons don’t work, unplug the dishwasher to disconnect electrical power and disconnect the user interface control wire harness. Reassemble the door with the user interface wire harness disconnected, but don’t close the door. Plug in the dishwasher and wait at least 7 seconds for the electronic control board to power up completely. Then close the door. If the electronic control no longer detects stuck buttons with the user interface wire harness unplugged, it will start the drain pump. If the drain pump runs, replace the user interface control. If the drain pump doesn’t run, then replace the electronic control board because it still detects stuck buttons with the user interface control unplugged.

User interface control can’t communicate with electronic control board.

Solution:

Shut off power to the dishwasher. Check the wiring between the user interface control and the electronic control board. If the wires and connections are okay, replace the user interface control board. If the problem persists, replace the electronic control board.

Thermistor/OWI sensor failure (The thermistor is the water temperature sensor, the OWI sensor is the Optical Water Indicator that detects the amount of debris in the water.)

Solution:

Unplug the dishwasher to disconnect electrical power and then check the wiring between the electronic control board and the thermistor/OWI sensor. Repair or replace the wire harness if broken. If you find the wiring undamaged, replace the thermistor/OWI sensor.

Shorted thermistor/OWI sensor.

Solution:

Unplug the dishwasher to disconnect electrical power and then check the wiring between the electronic control board and the thermistor/OWI sensor. Repair or replace the wire harness if broken. If you find the wiring undamaged, replace the thermistor/OWI sensor.

OWI failed to calibrate or the drain hose check valve failed, allowing dirty water to backflow into the dishwasher.

Solution:

Disconnect the dishwasher drain hose connection from the air gap or the garbage disposal if you have no air gap. Pour water through the drain hose to see if water backs up into the dishwasher tub. If so, replace the portion of the drain hose that connects to the drain pump because the check valve in that hose failed. If water doesn’t back up into the dishwasher through the drain hose, reconnect the hose and run the Service Diagnostics Test according to the instructions in the tech sheet. You should see low soil level indicated during the OWI test in the diagnostic mode. If you see high soil level during the OWI test, unplug the dishwasher and clean the OWI sensor. Reassemble the dishwasher and plug the dishwasher back in to restore electrical power. Run the diagnostic test cycle so the electronic control board will calibrate the OWI sensor on the next cycle. Run a normal wash cycle. If you still see the error code, replace the thermistor/OWI sensor.

Communication error between the electronic control board and the circulation pump motor.

Solution:

Unplug the dishwasher to disconnect electrical power. Check the circulation pump wire harness and reconnect any loose wires or replace the wire harness if damaged. If the wiring connections are okay, replace the circulation pump and motor assembly. If the problem continues, replace the electronic control board.

Communication error between the electronic control board and the circulation pump motor.

Solution:

Unplug the dishwasher to disconnect electrical power. Check the circulation pump wire harness and reconnect any loose wires or replace the wire harness if damaged. If the wiring connections are okay, replace the circulation pump and motor assembly. If the problem continues, replace the electronic control board.

Door switch failure.

Solution:

This code appears if you don’t close the door within 4 seconds of pressing the Start/Resume button, or if the door latch assembly is broken. When starting a cycle, close the door within 4 seconds after pressing Start/Resume. If you can’t start the cycle and the code continues, then the door switch could be defective. Unplug the dishwasher to disconnect electrical power. Disassemble the door and check the door switch wire harness. Reconnect any loose wires or replace the wire harness if damaged. If the wire harness is okay, replace the door latch assembly.

Control detects door not opening.

Solution:

The electronic control board expects to see the door open between cycles or the dishwasher won’t start the next time you try to start a new cycle. If you didn’t open the door between cycles, cancel the cycle. Open and shut the door, and then start a new cycle. If the cycle still won’t start, then the door switch could be defective. Unplug the dishwasher, then plug it back in to simulate the door opening. If the cycle starts, replace the door latch assembly because the door switch isn’t detecting the door opening.

Won’t fill.

Solution:

Check for an item stuck under the overfill float and remove it. If the overfill float sticks in the “up” position the dishwasher won’t fill. Unplug the dishwasher to disconnect electrical power and shut the water supply valve. Disconnect the water supply line from the water inlet valve and check the water inlet valve screen for clogs. Replace the water valve if you find the screen clogged because debris from the clog can get into the valve body, causing the valve to stick open and possibly flood your kitchen. If the screen is clear, place the end of the water supply line in a shallow pan and briefly open the water supply valve to see if water flows from the supply line. If water doesn’t flow, have a plumber repair the water supply to your dishwasher. If the water flows okay, check the wiring connections on the water inlet valve and reconnect any loose wires or replace the wire harness if damaged. If the wires are okay, you may need to replace the water inlet valve or the electronic control board.

Water inlet valve failure.

Solution:

Unplug the dishwasher to disconnect electrical power. Remove the bottom front access panel and toe panel. Check the wire harness connections on the water inlet valve. Reconnect any loose wires. Replace the wire harness if damaged. If the wire harness connections are okay, check the resistance of the water inlet valve using a multimeter. You should measure around 1,400 ohms of resistance through the water inlet valve. If you measure infinite resistance, replace the water inlet valve. If the problem continues, replace the electronic control board.

Suds or air are in the water pump.

Solution:

Check for sudsy water. If you see excessive suds, try to drain the dishwasher by cancelling the cycle. The drain pump will run for 3 minutes. If the drain pump can’t drain the sudsy water, drain the water by hand or use a wet/dry shop vacuum to remove the water. Check the detergent dispenser and replace if it’s damaged. Use only dishwasher detergent in the dishwasher. Using regular dish soap in the dishwasher causes excessive suds. If you don’t see excessive suds, check the water fill level in the tub because low water level causes air in the pump. The water level should just touch the bottom of the overfill float mushroom. If you find the water level too low, check for bowls or containers that flipped over during the cycle that could be holding water. Load items so they don’t flip over during the cycle and cause low water level. If you didn’t find bowls or containers flipped over and holding water, then a defective water inlet valve could cause the low water level. Unplug the dishwasher to disconnect electrical power and close the water supply valve. Disconnect the water supply line from the water inlet valve and check the water inlet valve screen for clogs. Replace the water valve if you find the screen clogged because debris from the clog can get into the valve body, causing the valve to stick open and possibly flood your kitchen. If the screen is clear, place the end of the water supply line in a shallow pan and briefly open the water supply valve to see if the water flows from the supply line. If water doesn’t flow, have a plumber repair the water supply to your dishwasher. If the water flows okay, check the wiring connections on the water inlet valve and reconnect any loose wires or replace the wire harness if damaged. If the wires are okay, you may need to replace the water inlet valve.

The float switch is open.

Solution:

Check the overfill float switch to see if it’s stuck or if an item is stuck under it. Check if the inlet water fill valve is properly shutting off the water supply when the dishwasher is off.

Incoming water is too cold.

Solution:

Use an accurate thermometer to check the water temperature. If it’s lower than 110 degrees F, check your water heater. If the water temperature is normal (110 to 120 degrees F), replace the thermistor/OWI or the electronic control board. Refer to the tech sheet for your dishwasher for a diagnostic test for the thermistor.

Disconnected or damaged flow meter.

Solution:

Shut off power to the dishwasher. Check the wiring to the flow meter. If the wiring is intact, replace the flow meter.

Problem with water softener regeneration valve (Water Softener Models Only).

Solution:

Shut off power to the dishwasher. Check the wiring to the water softener regeneration valve. If the wiring is intact, replace the water softener regeneration valve. If the problem persists, replace the electronic control board.

Heating element doesn’t work.

Solution:

Shut off power to the dishwasher. Inspect the heating element and replace it if it’s visibly damaged. If not, check the wiring to the heating element. If the wiring is intact, replace the heating element.

Heating element won’t shut off.

Solution:

Shut off power to the dishwasher for 5 minutes. If the code resumes when you restore power, replace the electronic control board.

Slow drain.

Solution:

Shut off power to the dishwasher and then shut off water. Check the drain path for an obstruction. If the drain path is clear, check the wiring on the drain pump. If the wiring is intact, replace the drain pump.

Drain pump electrical problem.

Solution:

Shut off power to the dishwasher and then shut off water. Check the wiring on the drain pump. If the wiring is intact, replace the drain pump.

Electronic control board can’t detect the position of the diverter disc.

Solution:

The diverter motor positions the disc that directs the water through the lower spray arm or the upper spray arm. The diverter motor also monitors the position of the diverter disc and sends position signals to the electronic control board. Unplug the dishwasher to disconnect power and check the wiring going to the diverter motor. Reconnect any loose wires or replace the wire harness if damaged. If the wiring is intact, replace the diverter motor because it isn’t sending position signals to the electronic control board.

Diverter motor is stuck on.

Solution:

The diverter relay on the electronic control board is defective. Unplug the dishwasher to disconnect electrical power and replace the electronic control board.

Detergent dispenser failure.

Solution:

Unplug the dishwasher to disconnect electrical power. Remove the outer door panel and check the wiring connections between the electronic control board and the detergent dispenser. Reconnect any loose wires or replace the wire harness if damaged. If the wiring is intact, replace the detergent dispenser.

Vent wax motor electrical problem.

Solution:

Shut off power to the dishwasher. Check the wiring in the vent wax motor circuit. If the wiring is intact, replace the vent wax motor.

Drying fan failure.

Solution:

Unplug the dishwasher to disconnect electrical power. Check the wiring between the electronic control board and the drying fan. Reconnect any loose wires or replace the wire harness if damaged. If the wiring is intact, replace the drying fan.

Stuck relay on the electronic control board.

Solution:

Shut off power to the dishwasher for 5 minutes. If the code resumes when you restore power, check the wiring connected to the control board for damage and repair any broken wires. Measure the resistance through all components connected to the control board using the tech sheet as a guide. You can find the tech sheet behind the bottom front toe panel of the dishwasher. Replace any defective components. If the wiring and components are okay, replace the electronic control board.

All the LED’s are on because the user interface control is incompatible with the electronic control board.

Solution:

The code appears when you install the wrong user interface control. Order and install the correct user interface control for your model of dishwasher.

Stuck button on the user interface control.

Solution:

Check all buttons on the user interface control for a response. If one or more of the buttons don’t work, unplug the dishwasher to disconnect electrical power and disconnect the user interface control wire harness. Reassemble the door with the user interface wire harness disconnected, but don’t close the door. Plug in the dishwasher and wait at least 7 seconds for the electronic control board to power up completely. Then close the door. If the electronic control no longer detects stuck buttons with the user interface wire harness unplugged, it will start the drain pump. If the drain pump runs, replace the user interface control. If the drain pump doesn’t run, then replace the electronic control board because it still detects stuck buttons with the user interface control unplugged.

User interface control can’t communicate, with electronic control board.

Solution:

Shut off power to the dishwasher. Check the wiring between the user interface control and the electronic control board. If the wires and connections are okay, replace the user interface control board. If the problem persists, replace the electronic control board.

Thermistor/OWI sensor failure (The thermistor is the water temperature sensor, the OWI sensor is the Optical Water Indicator that detects the amount of debris in the water.)

Solution:

Unplug the dishwasher to disconnect electrical power and then check the wiring between the electronic control board and the thermistor/OWI sensor. Repair or replace the wire harness if broken. If you find the wiring undamaged, replace the thermistor/OWI sensor.

Shorted thermistor/OWI sensor.

Solution:

Unplug the dishwasher to disconnect electrical power and then check the wiring between the electronic control board and the thermistor/OWI sensor. Repair or replace the wire harness if broken. If you find the wiring undamaged, replace the thermistor/OWI sensor.

OWI failed to calibrate or the drain hose check valve failed, allowing dirty water to backflow into the dishwasher.

Solution:

Disconnect the dishwasher drain hose connection from the air gap or the garbage disposal if you have no air gap. Pour water through the drain hose to see if water backs up into the dishwasher tub. If so, replace the portion of the drain hose that connects to the drain pump because the check valve in that hose failed. If water doesn’t back up into the dishwasher through the drain hose, reconnect the hose and run the Service Diagnostics Test according to the instructions in the tech sheet. You should see low soil level indicated during the OWI test in the diagnostic mode. If you see high soil level during the OWI test, unplug the dishwasher and clean the OWI sensor. Reassemble the dishwasher and plug the dishwasher back in to restore electrical power. Run the diagnostic test cycle so the electronic control board will calibrate the OWI sensor on the next cycle. Run a normal wash cycle. If you still see the error code, replace the thermistor/OWI sensor.

Communication error between the electronic control board and the circulation pump motor.

Solution:

Unplug the dishwasher to disconnect electrical power. Check the circulation pump wire harness and reconnect any loose wires or replace the wire harness if damaged. If the wiring connections are okay, replace the circulation pump and motor assembly. If the problem continues, replace the electronic control board.

Door switch failure.

Solution:

This code appears if you don’t close the door within 4 seconds of pressing the Start/Resume button, or if the door latch assembly is broken. When starting a cycle, close the door within 4 seconds after pressing Start/Resume. If you can’t start the cycle and the code continues, then the door switch could be defective. Unplug the dishwasher to disconnect electrical power. Disassemble the door and check the door switch wire harness. Reconnect any loose wires or replace the wire harness if damaged. If the wire harness is okay, replace the door latch assembly.

Control detects door not opening.

Solution:

The electronic control board expects to see the door open between cycles or the dishwasher won’t start the next time you try to start a new cycle. If you didn’t open the door between cycles, cancel the cycle. Open and shut the door, and then start a new cycle. If the cycle still won’t start, then the door switch could be defective. Unplug the dishwasher, then plug it back in to simulate the door opening. If the cycle starts, replace the door latch assembly because the door switch isn’t detecting the door opening.

Won’t fill.

Solution:

Check for an item stuck under the overfill float and remove it. If the overfill float sticks in the “up” position the dishwasher won’t fill. Unplug the dishwasher to disconnect electrical power and shut the water supply valve. Disconnect the water supply line from the water inlet valve and check the water inlet valve screen for clogs. Replace the water valve if you find the screen clogged because debris from the clog can get into the valve body, causing the valve to stick open and possibly flood your kitchen. If the screen is clear, place the end of the water supply line in a shallow pan and briefly open the water supply valve to see if water flows from the supply line. If water doesn’t flow, have a plumber repair the water supply to your dishwasher. If the water flows okay, check the wiring connections on the water inlet valve and reconnect any loose wires or replace the wire harness if damaged. If the wires are okay, you may need to replace the water inlet valve or the electronic control board.

Water inlet valve failure.

Solution:

Unplug the dishwasher to disconnect electrical power. Remove the bottom front access panel and toe panel. Check the wire harness connections on the water inlet valve. Reconnect any loose wires. Replace the wire harness if damaged. If the wire harness connections are okay, check the resistance of the water inlet valve using a multimeter. You should measure around 1,400 ohms of resistance through the water inlet valve. If you measure infinite resistance, replace the water inlet valve. If the problem continues, replace the electronic control board.

Suds or air are in the water pump.

Solution:

Check for sudsy water. If you see excessive suds, try to drain the dishwasher by cancelling the cycle. The drain pump will run for 3 minutes. If the drain pump can’t drain the sudsy water, drain the water by hand or use a wet/dry shop vacuum to remove the water. Check the detergent dispenser and replace if it’s damaged. Use only dishwasher detergent in the dishwasher. Using regular dish soap in the dishwasher causes excessive suds. If you don’t see excessive suds, check the water fill level in the tub because low water level causes air in the pump. The water level should just touch the bottom of the overfill float mushroom. If you find the water level too low, check for bowls or containers that flipped over during the cycle that could be holding water. Load items so they don’t flip over during the cycle and cause low water level. If you didn’t find bowls or containers flipped over and holding water, then a defective water inlet valve could cause the low water level. Unplug the dishwasher to disconnect electrical power and close the water supply valve. Disconnect the water supply line from the water inlet valve and check the water inlet valve screen for clogs. Replace the water valve if you find the screen clogged because debris from the clog can get into the valve body, causing the valve to stick open and possibly flood your kitchen. If the screen is clear, place the end of the water supply line in a shallow pan and briefly open the water supply valve to see if the water flows from the supply line. If water doesn’t flow, have a plumber repair the water supply to your dishwasher. If the water flows okay, check the wiring connections on the water inlet valve and reconnect any loose wires or replace the wire harness if damaged. If the wires are okay, you may need to replace the water inlet valve.

The float switch is open.

Solution:

Check the overfill float switch to see if it’s stuck or if an item is stuck under it. Check if the inlet water fill valve is properly shutting off the water supply when the dishwasher is off.

Incoming water is too cold.

Solution:

Use an accurate thermometer to check the water temperature. If it’s lower than 110 degrees F, check your water heater. If the water temperature is normal (110 to 120 degrees F), replace the thermistor/OWI or the electronic control board. Refer to the tech sheet for your dishwasher for a diagnostic test for the thermistor.

Disconnected or damaged flow meter.

Solution:

Shut off power to the dishwasher. Check the wiring to the flow meter. If the wiring is intact, replace the flow meter.

Problem with water softener regeneration valve (Water Softener Models Only).

Solution:

Shut off power to the dishwasher. Check the wiring to the water softener regeneration valve. If the wiring is intact, replace the water softener regeneration valve. If the problem persists, replace the electronic control board.

Heating element doesn’t work.

Solution:

Shut off power to the dishwasher. Inspect the heating element and replace it if it’s visibly damaged. If not, check the wiring to the heating element. If the wiring is intact, replace the heating element.

Heating element won’t shut off.

Solution:

Shut off power to the dishwasher for 5 minutes. If the code resumes when you restore power, replace the electronic control board.

Slow drain.

Solution:

Shut off power to the dishwasher and then shut off water. Check the drain path for an obstruction. If the drain path is clear, check the wiring on the drain pump. If the wiring is intact, replace the drain pump.

Drain pump electrical problem.

Solution:

Shut off power to the dishwasher and then shut off water. Check the wiring on the drain pump. If the wiring is intact, replace the drain pump.

Drain pump stuck on.

Solution:

Shut off power to the dishwasher and check the drain pump wiring. Replace the wire harness if damaged. If the wiring is okay, replace the electronic control board.

Detergent dispenser failure.

Solution:

Unplug the dishwasher to disconnect electrical power. Remove the outer door panel and check the wiring connections between the electronic control board and the detergent dispenser. Reconnect any loose wires or replace the wire harness if damaged. If the wiring is intact, replace the detergent dispenser.

Drying fan failure

Solution:

Unplug the dishwasher to disconnect electrical power. Check the wiring between the electronic control board and the drying fan. Reconnect any loose wires or replace the wire harness if damaged. If the wiring is intact, replace the drying fan.