Please contact Thermador Customer Support at 1-800-735-4328 if your error code is not listed below as it may require technician assistance.
Click on the tabs below to view helpful tips for your appliance. If you need further assistance, please contact Thermador Customer Support: 1-800-735-4328. |
Error Codes
Appliance has detected faulty (heater) electronics in the self-test.
Contact Thermador Customer Support at 1-800-735-4328 for assistance.
E12 - There is limescale build up in the heat pump.
Use a descaler to remove hard water deposits and limescale buildup.
To help avoid this issue in future instances, use softener salt in your dishwasher if it comes with a water softener. Review your owner's manual to learn more. Watch the video for a guided tutorial on loading salt in the dishwasher. Purchase softener salt in the Thermador Accessories Store.
E14 - There is a flow meter failure or an issue with water flowing into the dishwasher or the filling system.
Please contact Thermador Customer Support at 1-800-735-4328 for further assistance.
E15 - The safety switch has detected water in the base of the dishwasher. The leakage protection system has activated.
Please turn off the water inflow and contact Thermador Customer Support at 1-800-735-4328 if you need further assistance.
E16 or E17 - There is an issue with water flowing into the dishwasher or the filling system. The water may not be able to enter the dishwasher.
Check the inlet hose and make sure it isn't kinked or damaged.
E18 - The water level is too low, or water is not being pumped correctly.
Please check the following things:
1. Check the inlet hose and make sure it isn't kinked or damaged.
2. Make sure the water supply is turned on. The water flow rate should be 10 l/min.
This error code could be caused by a number of issues — please check the following:
The dishwasher filter is blocked. The filter is the area where food particles get caught and it needs to be cleaned regularly.
1. Remove and wash the filter under running water with mild soap and a soft brush to remove debris then reinstall.
View full instructions on how to clean your dishwasher filter here.
The drain pump is blocked or the drain pump cover is loose.
1. Remove the drain pump cover.
2. Clean the drain pump by removing standing water and loose debris.
3. Replace the drain pump cover, making sure it clicks into place. This ensures it is completely closed.
View this video to learn more.
The drain pump hose is kinked or sharply bent.
1. Check the drain pump hose and make sure it is not bent or kinked.
View this video to learn more.
The airgap or drain hose may be clogged with debris.
1. Turn off the appliance and check the airgap.
2. Disconnect the drain hose and place hose in a bucket.
3. Clear debris from the hose and reconnect it.
4. Turn on the appliance and start a rinse cycle to test functionality.
If the issue still exists, please Contact Thermador Customer Support at 1-800-735-4328 for assistance.
E23 - The drain pump is blocked, clogged, or faulty.
Please contact Thermador Customer Support at 1-800-735-4328 for further assistance.
This error code could be caused by a number of issues — please check the following:
The drain pump is blocked or the drain pump cover is loose.
1. Remove the drain pump cover.
2. Clean the drain pump by removing standing water and loose debris.
3. Replace the drain pump cover, making sure it clicks into place. This ensures it is completely closed.
View this video to learn more.
The drain pump hose is kinked or sharply bent.
1. Check the drain pump hose and make sure it is not bent or kinked.
View this video to learn more.
The airgap or drain hose may be clogged with debris.
1. Turn off the appliance and check the airgap.
2. Disconnect the drain hose and place hose in a bucket.
3. Clear debris from the hose and reconnect it.
4. Turn on the appliance and start a rinse cycle to test functionality.
If the issue still exists, please Contact Thermador Customer Support at 1-800-735-4328 for assistance.
This error code could be caused by a number of issues — please check the following:
The drain pump is blocked or the drain pump cover is loose.
1. Remove the drain pump cover.
2. Clean the drain pump by removing standing water and loose debris.
3. Replace the drain pump cover, making sure it clicks into place. This ensures it is completely closed.
View this video to learn more.
The drain pump hose is kinked or sharply bent.
1. Check the drain pump hose and make sure it is not bent or kinked.
View this video to learn more.
The airgap or drain hose may be clogged with debris.
1. Turn off the appliance and check the airgap.
2. Disconnect the drain hose and place hose in a bucket.
3. Clear debris from the hose and reconnect it.
4. Turn on the appliance and start a rinse cycle to test functionality.
If the issue still exists, please Contact Thermador Customer Support at 1-800-735-4328 for assistance.
E27 - The supply voltage is too low.
This not a fault or error for the appliance. Please have your home's voltage and electrical system checked by a professional electrician.
There is a heat pump motor circuit fault at the main control board.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
There is a main control board relay fault/error.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
Appliance has detected faulty (heater) electronics in the self-test.
Contact Thermador Customer Support at 1-800-735-4328 for assistance.
There is a wash arm diverter circuit in main control board fault/error.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
There is a main control board relay fault/error.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
Failure causing electronics miscommunication.
Contact Thermador Customer Support at 1-800-735-4328 for assistance.
There is a heat pump internal heater fault/error.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
There is limescale build-up in the heat pump.
The dishwasher needs to be descaled. A descaler can be used to descale your dishwasher.
Dishwashers are used on a regular basis which means that limescale can build up quickly, especially in hard water areas. To help your dishwasher work efficiently and effectively, and to ensure your dishes come out clean, regular descaling is important.
To help avoid this issue in the future, use softening salt in your dishwasher if it comes with a water softener function.
Purchase the descaler here and purchase softening salt here.
There is a Zeolite (Crystal Dry) chamber heater fault/error.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
The Zeolite (Crystal Dry) fan motor is defective.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
There is a flow meter failure or an issue with water flowing into the dishwasher or the filling system.
Contact Thermador Customer Support at 1-800-735-4328 for assistance.
The safety switch has detected water in the base of the dishwasher. Your leakage protection system has been activated.
Please turn off the water inflow and contact Thermador Customer Support at 1-800-735-4328 for assistance.
There is an issue with water flow into the dishwasher. The water level is too low, or water is not being pumped correctly.
1. Check the inlet hose and make sure it isn't kinked or damaged.
2. Make sure the water supply is turned on. The water flow rate should be 10 l/min.
For further assistance, please contact Thermador Customer Support at 1-800-735-4328.
There is an issue with water flowing into the dishwasher or the filling system. The water may not be able to enter the dishwasher.
Check the inlet hose and make sure it isn't kinked or damaged. For further assistance on how to troubleshoot your dishwasher, contact Thermador Customer Support at 1-800-735-4328.
There is a heat pump internal heater fault/error.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
The heat pump is blocked.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
There is an issue with the drain pump. This happens when the drain pump is blocked, clogged, or faulty.
Contact Thermador Customer Support at 1-800-735-4328 for assistance.
This error code could be caused by a number of issues — please check the following:
The drain pump is blocked or the drain pump cover is loose.
1. Remove the drain pump cover.
2. Clean the drain pump by removing standing water and loose debris.
3. Replace the drain pump cover, making sure it clicks into place. This ensures it is completely closed.
View this video to learn more.
The drain pump hose is kinked or sharply bent.
1. Check the drain pump hose and make sure it is not bent or kinked.
View this video to learn more.
The airgap or drain hose may be clogged with debris.
1. Turn off the appliance and check the airgap.
2. Disconnect the drain hose and place hose in a bucket.
3. Clear debris from the hose and reconnect it.
4. Turn on the appliance and start a rinse cycle to test functionality.
If the issue still exists, please Contact Thermador Customer Support at 1-800-735-4328 for assistance.
This error code could be caused by a number of issues — please check the following:
The drain pump is blocked or the drain pump cover is loose.
1. Remove the drain pump cover.
2. Clean the drain pump by removing standing water and loose debris.
3. Replace the drain pump cover, making sure it clicks into place. This ensures it is completely closed.
View this video to learn more.
The drain pump hose is kinked or sharply bent.
1. Check the drain pump hose and make sure it is not bent or kinked.
View this video to learn more.
The airgap or drain hose may be clogged with debris.
1. Turn off the appliance and check the airgap.
2. Disconnect the drain hose and place hose in a bucket.
3. Clear debris from the hose and reconnect it.
4. Turn on the appliance and start a rinse cycle to test functionality.
If the issue still exists, please Contact Thermador Customer Support at 1-800-735-4328 for assistance.
Zone Control lower spray arm reference position not found.
Contact Thermador Customer Support at 1-800-735-4328 for assistance.
There is a detergent dispenser solenoid circuit fault/error.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
There is a door sensor circuit fault/error.
Reset power to breaker for 30 seconds. If not resolved, call Thermador Customer Support at 1-800-735-4328 for assistance.
The house power supply to the unit is too low.
Reset power to breaker for 30 seconds.If the error occurs again, contact an electrician to check incoming voltage to the appliance.
This error code could be caused by a number of issues — please check the following:
The dishwasher filter is blocked. The filter is the area where food particles get caught and it needs to be cleaned regularly.
1. Remove and wash the filter under running water with mild soap and a soft brush to remove debris then reinstall.
View full instructions on how to clean your dishwasher filter here.
The drain pump is blocked or the drain pump cover is loose.
1. Remove the drain pump cover.
2. Clean the drain pump by removing standing water and loose debris.
3. Replace the drain pump cover, making sure it clicks into place. This ensures it is completely closed.
View this video to learn more.
The drain pump hose is kinked or sharply bent.
1. Check the drain pump hose and make sure it is not bent or kinked.
View this video to learn more.
The airgap or drain hose may be clogged with debris.
1. Turn off the appliance and check the airgap.
2. Disconnect the drain hose and place hose in a bucket.
3. Clear debris from the hose and reconnect it.
4. Turn on the appliance and start a rinse cycle to test functionality.
If the issue still exists, please Contact Thermador Customer Support at 1-800-735-4328 for assistance.
There is no salt in the dishwasher.
Refill the softening salt.
There is no rinse aid in the dishwasher.
Refill the rinse aid.
UP - This is not an error code and indicates your dishwasher's software has been updated.
Press any program button to clear this message.
Please contact Thermador Customer Support at 1-800-735-4328 if your error code is not listed below as it may require technician assistance.