Bosch
WFMC8400UC/13
Washing Machine
Bosch WFMC8400UC/13 — Error Code E04
Bosch WFMC8400UC/13 error code E04: Water overfill — too much water in drum.
Last reviewed:
Last updated:
Methodology: We combine manufacturer references with recurring service patterns, then review for safe, step-by-step repair guidance.
Sources: Manufacturer fault-code sheets, service manuals, and recurring field-repair patterns.
Limits: Guidance is informational and may not match every model-year or revision. Confirm with the official manual and diagnostics before replacing parts. For safety-critical or electrical work, use a qualified technician.
Looking for the full diagnosis and repair guide? View complete Bosch Washing Machine error code E04 guide →
Repair guidance: the symptoms and steps below come from the canonical Bosch Washing Machine E04 guide and apply to WFMC8400UC/13 unless your manual says otherwise.
Symptoms on WFMC8400UC/13
- ⚠️ Washer not filling with water
- ⚠️ Long fill time
- ⚠️ Machine stops mid-cycle
How to Fix Error E04 on WFMC8400UC/13
- 1 Unplug the washing machine for 60 seconds then plug back in — this resets the control board and clears many temporary faults
- 2 Check that the water supply valve behind the machine is fully open
- 3 Inspect the inlet hose screen filter — sediment often blocks it (unscrew hose, clean mesh screen)
- 4 Test the water inlet valve with a multimeter — replace if no continuity ($15–$80 part)
- 5 Check the drive belt — if broken or slipping, replace it ($10–$30 part)
🛠️ You'll need: Screwdriver set, Pliers, Multimeter
· Time: 20–40 min
Questions People Also Ask for Error E04
What does Bosch Washing Machine error code E04 mean? ▼
Error code E04 on a Bosch Washing Machine means: Water overfill — too much water in drum. The appliance detected this condition and has stopped or limited operation to prevent further damage.
How do I fix Bosch Washing Machine error code E04? ▼
First, unplug the washing machine for 60 seconds to reset the control board. If error E04 returns, the root cause (water overfill — too much water in drum) needs to be addressed — check connections, filters, and hoses before calling a technician.
Is it safe to use my Bosch Washing Machine with error code E04? ▼
It depends on the cause. Most E04 errors mean the appliance has stopped itself as a safety measure. Check the 'Should I unplug it?' section above for specific guidance on this error.