Whirlpool WMH31017HZ Repair Guide
The fingerprint resistant stainless version of Whirlpool’s volume over the range microwave. Standard 300 CFM venting and the familiar interlock, vent and high voltage failure sequence.
Whirlpool WMH31017HZ is an over the range microwave, 1.7 cu ft, fingerprint resistant microwave sold 2018 to present. Its most common repair is no power at all, usually $110 to $265.
- 5 common problems with causes, fixes and costs below.
- 3 error codes decoded.
- A microwave like this lasts about 7 to 10 years.
- Check the model and serial tag before you order any part.
Common problems & typical repair costs
| Problem | Likely cause | Typical fix | OEM part # | Typical cost |
|---|---|---|---|---|
| No power at all | Interlock switch failure taking out the fuse | Replace interlock set and ceramic fuse | not listed | $110 to $265 |
| No heating | Magnetron or diode failure | Professional high voltage repair | not listed | $165 to $400 |
| Turntable stopped | Roller ring or coupler worn | Replace from inside the cavity, an owner job | not listed | $10 to $45 |
| Door will not latch | Plastic latch hooks snapped | Replace door latch assembly | not listed | $100 to $245 |
| Fan runs on its own | Thermal protection responding to cooktop heat | Confirm normal behavior before replacing parts | not listed | $0 to $280 |
Costs are national averages for professional repair (parts + labor). See the linked cost guides below for full breakdowns.
Error codes
| Code | What it means |
|---|---|
| F2 | Shorted key on the keypad |
| F6 | Sensor circuit fault |
| Open/Close Door | Door not sensed as closed |
Tech notes
The fingerprint resistant coating is a surface treatment, not stainless itself. Abrasive pads strip it permanently, so warn owners to use only a soft cloth.
Sources
Where the safety, regulatory and warranty claims on this page come from. Repair costs are our own figures based on Arizona market rates and OEM parts pricing.
- Microwave Ovens, Radiation Emitting Products U.S. Food & Drug Administration The federal requirement for two independent door interlocks plus a monitoring system, and the 21 CFR 1030.10 leakage limit, why an interlock must never be bypassed.
Cost guides for this machine’s common repairs
DIY step by step instructions for this model
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