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Bosch
Error Codes
Dishwashers
#
Error
Solution
1
E01
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.
2
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.
3
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.
4
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.
5
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.
6
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.
7
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.
8
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.
9
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 and purchase softening salt here.
10
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.
11
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.
12
E16
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.
13
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.
14
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.
15
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.
16
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.
17
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.
18
E22
The dishwasher filter is blocked. The filter is the area where food particles get caught and it needs to be cleaned regularly. Remove and wash the filter under running water with mild soap and a soft brush to remove debris then reinstall. You can find the 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
19
E23
There is an issue with the drain pump. This happens when the drain pump is blocked, clogged, or faulty. Contact Bosch Customer Support at 1-800-944-2904 for assistance.
20
E24
The dishwasher is not draining properly due to the drain filter being blocked.
1. Check the inlet hose and ensure it's not kinked or damaged.
2. The pump cover may be loose. The pump cover is located at the bottom of the dishwasher underneath the filter. Remove the filter to reveal the pump cover and ensure that it’s not loose. If you have trouble locating it, review your owner's manual.
3. If the dishwasher drain hose is connected to a garbage disposal's dishwasher drain connection, ensure that the plug is removed from the disposer’s dishwasher drain connection.
21
E25
The drain pump is blocked or the drain pump cover is loose or missing.
1. Check to see if the drain pump cover is loose. The pump cover is located at the bottom of the dishwasher underneath the filter. Remove the filter to reveal the pump cover and ensure that it’s not loose. If you have trouble locating it, review your owner’s manual.
2. The drain pump may be blocked. The pump is located at the bottom of the dishwasher underneath the filter. First, remove the filter completely to reveal the drain pump cover. Next, pry off the pump cover with a spoon until it clicks. Grip the cover and pull upward until you feel resistance. Then pull forward to remove the cover completely. Check the pump and remove any debris and standing water with a sponge. Use caution as some debris may be sharp. If needed, review your owner's manual for more specific instructions.
22
E27
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.
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