KitchenAid KMLS311HWH Over-the-range microwave
Troubleshooting, fault codes and repair information for the KitchenAid KMLS311HWH, organized around the engineering platform this over-the-range microwave is built on.
- Brand
- KitchenAid
- Model
- KMLS311HWH
- Engineering revisions
- KMLS311HWH, KMLS311HWH0, KMLS311HWH08, KMLS311HWH09, KMLS311HWH1, KMLS311HWH10, KMLS311HWH2, KMLS311HWH3, KMLS311HWH4, KMLS311HWH5, KMLS311HWH6, KMLS311HWH7, KMLS311HWH8, KMLS311HWH9
- Appliance
- Over-the-range microwave
- Platform
- Over-the-range microwave platform, documentation from about 2017
- Models on this platform
- 4 across KitchenAid
- Documented fault codes
- 4 with explanations
- Service documentation
- Tech sheet, service manual (used by our technicians; not published)
KitchenAid KMLS311HWH error codes
These are the fault codes documented for the platform this model belongs to. A code describes a condition the control detected; it does not by itself identify a failed part. Select a code for causes, safe checks and repair context.
| Code | Meaning | Areas involved |
|---|---|---|
| F1E4 | Microwave power relay error | Main control board, Door interlock switches, Wiring harness and connectors |
| F2E1 | Stuck or shorted key | Touchpad / membrane switch, User interface / keypad board, Main control board |
| F4E4 | Humidity sensor error | Main control board, Wiring harness and connectors |
| F8E5 | Exhaust air temperature sensor failure | Main control board, Vent fan and light, Wiring harness and connectors |
Common microwave problems
Typical microwave repair costs
| Repair | Typical range | Labor |
|---|---|---|
| Microwave no-heat repair (magnetron or high-voltage circuit) | $230–$520 | Moderate |
| Microwave door interlock switch replacement | $180–$320 | Light |
| Microwave turntable, vent fan or light motor repair | $180–$350 | Moderate |
| Microwave control board replacement | $230–$520 | Moderate |
| Microwave touchpad replacement | $200–$460 | Light |
Typical total ranges for the Las Vegas area, parts and labor included. The final cost depends on diagnosis, the exact model, parts availability and whether other damage is found.
Repair or replace?
Microwaves typically last about 8–10 years. Service documentation for this platform dates from about 2017, so the oldest units built on it are now around 9 years old. The age printed in the serial number, the repair cost and the condition of the rest of the appliance decide it. Use the repair-or-replace guide.
Models built on the same platform
These models share this platform's service documentation, so fault codes and most diagnostic steps are the same.
Need your KitchenAid KMLS311HWH repaired in the Las Vegas area?
We repair Whirlpool, Maytag, KitchenAid, JennAir, Amana and other Whirlpool-family appliances in Las Vegas, Henderson, Summerlin and Boulder City. A model number helps but is never required to book.