Dishwasher Error Codes | Support

There is a heat pump motor circuit fault at the main control board.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E02

There is a main control board relay fault/error.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E03

There is a main control board relay fault/error.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E04

Appliance has detected faulty (heater) electronics in the self-test.

Contact Bosch Customer Support at 1-800-944-2904 for assistance.

E05

There is a wash arm diverter circuit in main control board fault/error.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E06

There is a door sensor circuit fault/error.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E07

The Zeolite (Crystal Dry) fan motor is defective.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E09

There is a heat pump internal heater fault/error.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E10

There is a Zeolite (Crystal Dry) chamber heater fault/error.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E12

There is limescale build-up in the heat pump.

The dishwasher needs to be descaled. The Bosch 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 Bosch descaler here.

E14

There is a flow meter failure or an issue with water flowing into the dishwasher or the filling system.

Contact Bosch Customer Support at 1-800-944-2904 for assistance.

E15

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 Bosch Customer Support at 1-800-944-2904 for assistance.

E16 and 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. For further assistance on how to troubleshoot your dishwasher, contact Bosch Customer Support at 1-800-944-2904.

E18

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 Bosch Customer Support at 1-800-944-2904.

E19

There is a detergent dispenser solenoid circuit fault/error.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E20

There is a heat pump internal heater fault/error.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E21

The heat pump is blocked.

Reset power to breaker for 30 seconds. If not resolved, call Bosch Customer Support at 1-800-944-2904 for assistance.

E22/E-22

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. To learn more, view our 'How to Clean Your Dishwasher Filter' video on our How-to Video page.

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.

Bosch Dishwasher Error Codes

There is a heat pump motor circuit fault at the main control board.

There is a main control board relay fault/error.

There is a main control board relay fault/error.

Appliance has detected faulty (heater) electronics in the self-test.

There is a wash arm diverter circuit in main control board fault/error.

There is a door sensor circuit fault/error.

The Zeolite (Crystal Dry) fan motor is defective.

There is a heat pump internal heater fault/error.

There is a Zeolite (Crystal Dry) chamber heater fault/error.

There is limescale build-up in the heat pump.

There is a flow meter failure or an issue with water flowing into the dishwasher or the filling system.

The safety switch has detected water in the base of the dishwasher. Your leakage protection system has been activated.

There is an issue with water flowing into the dishwasher or the filling system. The water may not be able to enter the dishwasher.

There is an issue with water flow into the dishwasher. The water level is too low, or water is not being pumped correctly.

There is a detergent dispenser solenoid circuit fault/error.

There is a heat pump internal heater fault/error.

The heat pump is blocked.

This error code could be caused by a number of issues — please check the following:

There is an issue with the drain pump. This happens when the drain pump is blocked, clogged, or faulty.

This error code could be caused by a number of issues — please check the following:

This error code could be caused by a number of issues — please check the following:

The house power supply to the unit is too low.

There is a heat pump motor circuit fault at the main control board.

There is a main control board relay fault/error.

Appliance has detected faulty (heater) electronics in the self-test.

There is a wash arm diverter circuit in main control board fault/error.

There is a main control board relay fault/error.

Failure causing electronics miscommunication.

There is a heat pump internal heater fault/error.

There is limescale build-up in the heat pump.

There is a Zeolite (Crystal Dry) chamber heater fault/error.

The Zeolite (Crystal Dry) fan motor is defective.

There is a flow meter failure or an issue with water flowing into the dishwasher or the filling system.

The safety switch has detected water in the base of the dishwasher. Your leakage protection system has been activated.

There is an issue with water flow into the dishwasher. The water level is too low, or water is not being pumped correctly.

There is an issue with water flowing into the dishwasher or the filling system. The water may not be able to enter the dishwasher.

There is a heat pump internal heater fault/error.

The heat pump is blocked.

There is an issue with the drain pump. This happens when the drain pump is blocked, clogged, or faulty.

This error code could be caused by a number of issues — please check the following:

This error code could be caused by a number of issues — please check the following:

PowerControl™ (Controlled Lower Spray Arm) reference position not found.

There is a detergent dispenser solenoid circuit fault/error.

There is a door sensor circuit fault/error.

The house power supply to the unit is too low.

This error code could be caused by a number of issues — please check the following:

This error code could be caused by a number of issues — please check the following:

There is a technical issue.

The safety switch has detected water in the base of the dishwasher. Your leakage protection system has been activated.

There is a door sensor circuit fault/error.

There is a main control board relay fault/error.

There is a heat pump internal heater fault/error.

There is a heat pump internal heater fault/error.

This error code could be caused by a number of issues — please check the following:

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