KitchenAid KMHC319ESS Repair Guide
A convection over the range microwave that bakes, roasts and crisps as well as microwaving, using a heating element and fan alongside the magnetron. It is effectively two appliances sharing a cabinet, and each half fails independently.
KitchenAid KMHC319ESS is an over the range microwave, convection, 1.9 cu ft microwave sold 2016 to present. Its most common repair is microwave works, convection does not heat, usually $220 to $470.
- 5 common problems with causes, fixes and costs below.
- 4 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 |
|---|---|---|---|---|
| Microwave works, convection does not heat | Convection element or its relay failed | Replace convection element or relay | not listed | $220 to $470 |
| Convection works, no microwave heat | Magnetron or diode failure | Professional high voltage repair | not listed | $190 to $450 |
| Loud noise on convection cycles only | Convection fan motor bearings | Replace convection fan motor | not listed | $190 to $420 |
| Unit dead | Interlock failure, blown fuse | Replace interlock set and fuse | not listed | $125 to $285 |
| Control panel degrading | Years of cooktop steam on the membrane and board | Replace panel or board as diagnosed | not listed | $190 to $430 |
Costs are national averages for professional repair (parts + labor). See the linked cost guides below for full breakdowns.
Error codes
| Code | What it means |
|---|---|
| F2E1 | Shorted keypad |
| F3E0 | Temperature sensor fault (convection) |
| F6E1 | Control communication fault |
| Open/Close Door | Door sensing fault |
Tech notes
Always establish which function failed before quoting on a convection microwave. "It does not heat" can mean the magnetron or the convection element, they are entirely separate systems, and there can be a $250 difference between the two answers.
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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