Westinghouse Dishwasher Error F8
⚡ Quick Answer: The Westinghouse dishwasher F8 error indicates a heating fault, where water fails to reach the required temperature during a wash cycle. This issue ca... ✅ DIY Fixable
What Does Error F8 Mean?
The Westinghouse dishwasher F8 error indicates a heating fault, where water fails to reach the required temperature during a wash cycle. This issue can result in dishes not being cleaned or dried properly, often accompanied by unusual sounds from the pump. Common causes include a faulty heating element, an incorrectly reading temperature sensor, or wiring issues within the heating circuit.
Common Symptoms:
- Dishwasher displays F8 during or at end of cycle
- Dishes not properly cleaned or dried
- Water not heating or lukewarm wash
Possible Causes
- Faulty or failing heating element (medium)
- Temperature sensor (NTC/thermistor) reading incorrectly (medium)
- Wiring/connectivity issues in heating circuit (low)
How to Fix Error F8
DIY Fix Basic checks before service call
- Confirm water supply temperature is adequate (hot water inlet)
- Ensure dishwasher filters and spray arms are clean so water circulates properly
- Power cycle dishwasher by disconnecting mains for 5–10 minutes and retry a cycle
Technician Only Inspect and repair heating components
- Disconnect power and access heating assembly
- Measure resistance of heating element to check for continuity
- Test temperature sensor (NTC) resistance against manufacturer spec
- Inspect wiring harness for breaks or loose connectors
- Replace faulty heater or sensor as needed
Parts needed: heating element, temperature sensor (NTC), wiring harness
- If error persists after basic checks and reset
- If internal components testing is outside user comfort/safety
Next step
Choose the next step for F8
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
Heating Element
Heats the water or air inside the appliance to the required temperature.
- Typical part-only price
- $40 - $95
- DIY difficulty
- Medium
- Estimated time
- 30-45 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 components that may be involved
Check these only if your diagnosis points to them.
Temperature Sensor
Monitors the internal temperature to ensure correct operation and prevent overheating.
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.
Technical Specifications
| wattage | 50W |
|---|---|
| component | Drain Pump |
| resistance | 10-20 ohms |
| part_number | WDW-123456 |
| voltage_rating | 120V AC |
Common Questions
What does F8 error mean on Westinghouse dishwasher?
F8 error indicates a heating fault, causing dishes to not be cleaned or dried properly.
Can I fix Westinghouse dishwasher F8 error myself?
Yes, check water supply temperature, clean filters, and power cycle the dishwasher.
How much does it cost to fix F8 error?
Repair costs for the F8 error range from $50 to $200+, depending on parts.
When should I call a technician for F8?
Call a technician if the error persists after basic checks or if internal testing is outside your comfort level.
Data last verified: 2026-07-25
User Comments (0)
Share your experience or solution below.
Please login to post a comment.
Be the first to comment!