Maytag MMV1174FZ Repair Guide
A Whirlpool built 1.7 cu ft over the range microwave in Maytag trim with a stainless interior. Parts are shared across the Whirlpool line, which keeps them cheap and available well past the model’s production run.
Maytag MMV1174FZ is an over the range microwave, 1.7 cu ft microwave sold 2016 to present. Its most common repair is no heat, usually $160 to $395.
- 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 heat | Magnetron or diode failure | Professional high voltage repair | not listed | $160 to $395 |
| Totally dead | Fuse blown by interlock failure | Replace switches and fuse | not listed | $110 to $260 |
| Turntable stopped | Roller ring or coupler worn | Replace from inside the cavity | not listed | $10 to $45 |
| Sparks in the cavity | Waveguide cover burned through | Replace waveguide cover | not listed | $5 to $60 |
| Vent fan noisy | Blower wheel loose or bearings dry | Replace blower motor | not listed | $150 to $315 |
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 keypad |
| F6 | Sensor fault |
| Open/Close Door | Door not sensed as closed |
Tech notes
A stainless cavity tolerates cleaning better than enamel, which means owners scrub it and never look at the waveguide cover on the side wall. That cover is still mica and still a wear item, check it on every arcing call regardless of how clean the cavity looks.
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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