How to Fix Bosch Dishwasher Error E05

Error Code: E05 Difficulty: Hard

Problem: Wash arm diverter circuit fault on the main control board.

How to Fix E05 Error (Step-by-Step)

1. Turn off the power to the dishwasher at the circuit breaker.
2. The float switch is located in the bottom of the dishwasher tub. Remove the lower dish rack to access the float switch cover.
3. Remove the cover and lift out the float mechanism. The switch is underneath. Disconnect the wires from the switch.
4. Squeeze the locking tabs on the switch to release it and push it out from the bottom of the tub.
5. Install the new float switch, reconnect the wires, and reassemble the float mechanism. If the problem continues, replace the control board.
6. To replace the control board, remove the outer door panel to access it. Carefully disconnect all wire harnesses.
7. Install the new board, reconnect the wires, reassemble the door, and then test the dishwasher.
8. Turn the appliance off, wait about 2 minutes, then turn it back on.

Next Steps and Parts

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

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