Whirlpool Dryer Error F03
⚡ Quick Answer: The Whirlpool dryer F03 error indicates a malfunction in the temperature sensing circuit, often due to a faulty thermistor or loose wiring. This error... ✅ DIY Fixable
What Does Error F03 Mean?
The Whirlpool dryer F03 error indicates a malfunction in the temperature sensing circuit, often due to a faulty thermistor or loose wiring. This error can cause the dryer to overheat, fail to heat properly, or shut off unexpectedly during cycles. Addressing this issue promptly is essential to ensure safe and efficient operation.
Common Symptoms:
- Dryer displays F03 and may fail to start properly
- Dryer may overheat or fail to heat correctly
- Dryer may shut off unexpectedly during cycles
Possible Causes
- Faulty thermistor / temperature sensor (medium)
- Loose/damaged wiring to the temperature sensing circuit (medium)
How to Fix Error F03
DIY Fix Power Cycle and Basic Checks
- Disconnect the dryer from power for 5–10 minutes and reconnect to attempt a system reset.
- Ensure lint screen and exhaust vent are clean to prevent overheating.
Technician Only Inspect and Replace Thermistor / Repair Wiring
- Unplug the dryer and remove access panels to locate the thermistor/temperature sensor.
- Visually inspect the thermistor and associated wiring harness for damage or loose connections.
- Use a multimeter to test thermistor resistance per manufacturer specifications.
- Replace the thermistor if it shows open circuit or values outside the expected range.
- Repair or replace any damaged wiring harness connections.
- Reassemble the dryer and test for persistence of F03 error.
Parts needed: Thermistor / temperature sensor, Wiring harness/connectors
- If the error persists after checking/replacing the thermistor and wiring
- If you are uncomfortable working with internal electrical components
Next step
Choose the next step for F03
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
Most relevant component to inspect
Thermistor
Measures precise temperature changes and sends resistance feedback to the control board.
- Typical part-only price
- $15 - $35
- DIY difficulty
- Easy
- Estimated time
- 15-30 mins
Where can I find the model number?
Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.
Verify the complete model and part number on the retailer's compatibility page before ordering.
Other parts options
Check related components first; use model search as a fallback.
Temperature Sensor
Monitors the internal temperature to ensure correct operation and prevent overheating.
Wiring Harness
Connects controls, sensors, motors, and other electrical components inside the appliance.
Model-compatible Dryer parts
Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.
Optional routine care
Maintenance supplies
These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.
Dryer Vent Cleaning Kit
Helps remove routine lint buildup from an accessible dryer vent path. It does not diagnose or repair an E-code or failed component.
Lint Trap Cleaning Brush
A narrow brush for routine cleaning around an accessible lint screen and housing.
Dryer Vent Hose Kit
A replacement exhaust duct option for visibly crushed or damaged external venting. Check diameter, length, local code, and installation clearance.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| wattage | 5000W |
|---|---|
| component | Temperature Sensor |
| resistance | 10-20 ohms |
| part_number | WPW10150145 |
| voltage_rating | 240V AC |
Common Questions
What does F03 error mean on Whirlpool dryer?
F03 indicates a temperature sensor malfunction, leading to overheating or failure to heat.
Can I fix Whirlpool dryer F03 error myself?
Yes, you can power cycle the dryer and clean the lint screen. Replace the thermistor if needed.
How much does it cost to fix F03 error?
Repair costs range from $30 to $120 for parts, plus labor if you hire a technician.
When should I call a technician for F03?
Call a technician if the error persists after checking the thermistor or if you're uncomfortable with electrical components.
Sources & References
Data last verified: 2026-07-25
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