F12Whirlpool Washer
Whirlpool Washer Error F12 – Meaning, Causes & How to Fix
The appliance detected the thermistor reading is outside expected range.
Medium Severity
Low
Medium
High
Critical
Expert Verified
Reviewed by a Certified Electrical Engineer & Licensed Technician
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Official Meaning
The appliance detected the thermistor reading is outside expected range.
Real-World Causes
- 1Mechanical obstruction in pump or motor
- 2Loose wiring harness
- 3Power surge affecting electronics
Symptoms
Look for these signs to confirm error F12 on your Whirlpool Washer:
- Look for these signs to confirm F12 on your
- Whirlpool WFW5620HW:
- Cycle stops unexpectedly
- Unusual clicking or buzzing noises
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DIY Fix (Safe)
- 1Power cycle the appliance for 5 minutes
- 2Inspect hoses, filters, and accessible sensors
- 3Verify household power and water supply conditions
- 4Run appliance diagnostic mode if available
Professional Action Required
- 1Test electrical components with multimeter
- 2Inspect wiring harness and connectors
- 3Replace defective sensor, pump, motor, or control board if required
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Additional Context
Frequently Asked Questions
What does Whirlpool Washer error F12 mean?
The appliance detected the thermistor reading is
outside expected range.
What causes Whirlpool Washer F12 error?
Common causes include: Mechanical obstruction in pump or motor, Loose wiring harness, Power surge affecting electronics.
How do you fix Whirlpool Washer error F12?
Start with these DIY steps: Power cycle the appliance for 5 minutes. Inspect
hoses, filters, and accessible sensors. If the error persists, professional service may be needed.
Related Error Codes
Other Whirlpool Washer Errors
F01The appliance detected water level exceeded safety
threshold
F02The appliance detected sensor readings conflict with
expected parameters
F03The appliance detected cooling or ventilation fan is
not operating
F04The appliance detected the appliance cannot confirm the
door is locked
F05The appliance detected the thermistor reading is
outside expected range
F07The appliance detected the thermistor reading is
outside expected range
F19The appliance detected the thermistor reading is
outside expected range
F36The appliance detected the thermistor reading is
outside expected range
About the Author
Technical Review Team
Reviewed by certified appliance technicians with 10+ years of Whirlpool repair experience. Every error code is verified against manufacturer service manuals and real-world repair data.