Error code · Bosch
E:92 · Water supply valve is closed
The water supply valve is closed, preventing water flow. Check to ensure the valve is open.
Washing machineDIY First — Safe to Try YourselfFixLens verified
Safe first steps
- Locate the water supply valve connected to your washing machine and ensure it is fully open.
- Inspect the water supply hose for any kinks or bends that may restrict water flow.
- Check the water inlet filters for blockages and clean them if necessary.
When to stop
- If the water supply valve is open and there are no kinks in the hose, but the error persists, call a professional for further assistance.
Likely cause
The water supply valve is closed, preventing water flow. Check to ensure the valve is open.
Verification
Reviewed by: automated manual extraction
Verified against Bosch WUU28T02GR technical documentation
FixLens publishes its own structured technical logic verified against Bosch WUU28T02GR documentation · last verified April 21, 2026.
Official manufacturer support