e05
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Bosch · Dishwashers
Water switch Triac fault on control board
Quick Answer
Error code E05 on your Bosch Dishwashers means: Water switch Triac fault on control board. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Turn off the dishwasher and unplug it for 30 seconds, then restart.
2
Check the float switch at the bottom of the tub for debris or obstructions.
3
Test the float switch for continuity with a multimeter.
4
If the float switch is working, the control board Triac has failed and requires professional replacement.
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
Parts You May Need
Float switch
Main control board
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