E43
Error code
high severity
Bosch
E43 Error: Control module fault — PCB malfunction
Control module fault — PCB malfunction
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Diagnostic Steps
- 1
Step 1
Reset the machine (unplug for 10 minutes)
- 2
Step 2
Check all wiring harness connections to the board
- 3
Step 3
Inspect for signs of burning or corrosion on the board
- 4
Step 4
Replace the control module if reset does not resolve
⚠️ Always disconnect your appliance from mains power before starting any repair. If in doubt, consult a qualified engineer.
Parts to Check in order of probability
Frequently Asked Questions
What does the E43 error mean on a Bosch dishwasher?↓
Control module fault — PCB malfunction
Can I fix the E43 error myself?↓
Many E43 faults can be resolved by a competent DIYer. Always disconnect from mains power first. If unsure, consult a qualified engineer.