Whirlpool Washer - F09 Error Code
Overflow condition detected.
Meaning
Overflow condition detected.
The F09 error indicates that the washer has detected an overflow condition. Whirlpool Duet washers use a pressure switch to monitor water level. If the water level rises too high or the pressure switch detects rapid increases inconsistent with normal filling, the washer triggers F09 and activates the drain pump. This error is often caused by a stuck inlet valve, faulty pressure switch, or siphoning conditions.
Symptoms
Causes
Step-by-Step Fixes
- Turn off water supply immediately.
- Inspect inlet valves for mechanical sticking.
- Check the pressure hose for blockages.
- Ensure the drain hose is installed correctly.
- Replace the pressure switch if readings are inconsistent.
Safety Notes
- Unplug the washer before servicing valves or sensors.
Applicable Models
Show Models
- GHW9100LW
- GHW9150PW
- GHW9400PW
Related Pages
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- Whirlpool Washer F5 E2 Error Code
- Whirlpool Washer F5 E3 Error Code
- 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
- Whirlpool Washer F7 E1 Error Code
- Whirlpool Washer F7 E7 Error Code
- Whirlpool Washer F7 Error Code
- Whirlpool Washer F72 Error Code
- Whirlpool Washer F73 Error Code
- Whirlpool Washer F8 E1 Error Code
- Whirlpool Washer F8 E3 Error Code
- Whirlpool Washer F8 Error Code
- Whirlpool Washer F83 Error Code
- Whirlpool Washer F84 Error Code
- Whirlpool Washer F9 E1 Error Code
- Whirlpool Washer F9 Error Code
- Whirlpool Washer F99 Error Code
- Whirlpool Washer LO FL Error Code
- Whirlpool Washer LOC Error Code
- Whirlpool Washer SUD Error Code
- Whirlpool Washer SUDS Error Code
Model-Specific Notes
On Duet models, F09 frequently appears when the pressure hose becomes partially blocked by detergent residue.
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.