Error Code: F31 Difficulty: Easy
Problem: Maximum water level exceeded.
How to Fix F31 Error (Step-by-Step)
- Press the cancel or stop button to end the current cycle and drain the excess water.
- Unplug the washer from the power source and confirm the error stays cleared during a full test cycle.
- Check the drain hose for any clogs or kinks that might be preventing proper drainage.
- Locate and clean the drain pump filter, which is usually accessible through a small door on the front of the washer.
- If the washer is still overfilling, the pressure switch, which senses the water level, may be malfunctioning.
- To check the pressure switch, you will need to access it by removing a panel and inspect the hose for blockages and the switch for defects.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
What to Check Next on This Bosch Washer
Bosch Washer Error F31: Use the code or symbol as the starting clue, then confirm the actual symptom before ordering parts.
- Unplug the washer before touching wiring, the lock, the pump area, or the control panel.
- Check the door lock, drain filter, inlet supply, and visible harness connections before replacing controls.
- If the code returns during the same part of the cycle, match the repair path to that stage: fill, wash, drain, spin, lock, or control response.
If the issue returns after these checks, match replacement parts to the complete Bosch model number from the appliance tag. The same code can point to different components depending on the exact model and when the failure appears.
Likely Parts to Check
No exact official OEM part number is listed here because the correct Bosch Washer part can vary by full model number. These are targeted part-category searches, not universal fit claims.
-
Washer electronic control boardCommon replacement category: Main control boardFit note: Exact OEM part number varies by model. Confirm compatibility using the full model number before buying.Confidence: Medium
This category can be relevant for control and communication faults after wiring checks. Inspect wiring, connectors, airflow, water path, or filters first as applicable. -
Washer user interface control panelCommon replacement category: User interface / display boardFit note: Exact OEM part number varies by model. Confirm compatibility using the full model number before buying.Confidence: Medium
This category can be relevant for display, button, selector, or cycle-control faults. Inspect wiring, connectors, airflow, water path, or filters first as applicable. -
Washer drain pump assemblyCommon replacement category: Drain pumpFit note: Exact OEM part number varies by model. Confirm compatibility using the full model number before buying.Confidence: Medium
This category can be relevant for drain, no-spin, and water-removal symptoms after filter checks. Inspect wiring, connectors, airflow, water path, or filters first as applicable.
Before ordering: match the part to the complete model number on the appliance tag.
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
When It’s Better to Replace Than Repair
Sometimes replacing an appliance makes more financial sense than putting more money into repairs.
Here are a few signs it may be time to shop for a new one:
For repair parts, verify exact fit with the full washer model number before buying; these links are general replacement-appliance shopping options.
- ✓Appliance over 8-10 years old
- ✓Repair cost over 50% of replacement
- ✓Multiple recent breakdowns
- ✓Major component failure
Recommended Replacement Options
Why Upgrade via Amazon?
- Fast, Scheduled Delivery – You pick the date and time
- Expert Installation – Professional setup available for most models
- Old Appliance Haul-away – They’ll take your broken unit when they leave
- Easy Returns – Buy with confidence from a leader in customer service
As an Amazon Associate, we earn from qualifying purchases.
