Whirlpool Washer - F31 Error Code
Pressure switch failure detected.
Meaning
Pressure switch failure detected.
The F31 error indicates that the washer’s pressure switch is not responding correctly. Whirlpool Duet washers use a pressure switch to monitor water level during fill, wash, and drain cycles. If the switch does not open or close at the correct pressure, or if the control board receives inconsistent readings, the washer triggers F31. This error is common when the pressure hose is blocked, the switch diaphragm fails, or wiring becomes loose.
Symptoms
Causes
Step-by-Step Fixes
- Inspect the pressure hose for kinks or blockages.
- Ensure the hose is firmly connected at both ends.
- Clean the air dome on the tub.
- Replace the pressure switch if readings are inconsistent.
Safety Notes
- Disconnect power before servicing the pressure system.
Applicable Models
Show Models
- GHW9100LW
- GHW9150PW
Related Pages
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- Whirlpool Washer F5 Error Code
- Whirlpool Washer F51 Error Code
- Whirlpool Washer F52 Error Code
- Whirlpool Washer F54 Error Code
- Whirlpool Washer F6 E3 Error Code
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- Whirlpool Washer F72 Error Code
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- Whirlpool Washer F83 Error Code
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Model-Specific Notes
On Duet models, detergent residue buildup in the pressure hose frequently causes F31 by preventing accurate pressure changes.
Disclaimer
The information provided on this page is for educational and informational purposes only. Repairs involve electrical, mechanical, and water-related risks. Always follow manufacturer instructions and consider contacting a qualified technician for diagnosis or repair.