E31
Error code
low severity
Bosch
E31 Error: Turbidity sensor fault — Water clarity sensor malfunction
Turbidity sensor fault — Water clarity sensor malfunction
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Diagnostic Steps
- 1
Step 1
Clean the turbidity sensor (located in the sump area)
- 2
Step 2
Check sensor wiring connections
- 3
Step 3
Replace the sensor if cleaning does not resolve the issue
⚠️ 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 E31 error mean on a Bosch dishwasher?↓
Turbidity sensor fault — Water clarity sensor malfunction
Can I fix the E31 error myself?↓
Many E31 faults can be resolved by a competent DIYer. Always disconnect from mains power first. If unsure, consult a qualified engineer.