What's Included
- Safe high-voltage capacitor discharge before service
- Magnetron, diode, and door switch testing
- Waveguide cover inspection and replacement
- ExtendaVent fan motor and SmoothTouch panel diagnosis
- 90-day parts-and-labor warranty
LG microwaves — from the countertop LMC series to over-the-range LMHM models — are equipped with features like ExtendaVent 2.0 ventilation, SmoothTouch glass controls, and Sensor Cook auto-adjust technology. Our technicians service all LG microwave types and carry the high-voltage components needed for a same-visit repair.
Common LG Microwave Problems We Fix
The most common LG microwave issues include the unit powering on but not heating (magnetron or diode failure), the turntable stopping mid-cycle, ExtendaVent fan motors that run constantly or not at all, SmoothTouch control panels with dead zones, Sensor Cook producing inaccurate results due to a faulty humidity sensor, door switches that prevent operation, and error codes such as F-1 (sensor fault) or SE (shorted touchpad). Arcing inside the cavity — often caused by a damaged waveguide cover — is a safety issue we resolve promptly.
Our Repair Process
Microwave repair involves high-voltage components — our technicians safely discharge the high-voltage capacitor before performing any internal work. We test the magnetron, diode, capacitor, and door interlock switches in sequence. The waveguide cover is inspected and replaced if burned or cracked. ExtendaVent motors are tested for proper CFM output. SmoothTouch panel faults are diagnosed at the membrane switch and control board level. We do not attempt repairs that are uneconomical relative to replacement cost — we'll tell you honestly if that's the case.
Transparent Pricing
LG microwave repairs start from $79. A flat-rate quote follows the diagnostic — no high-pressure upsell, just honest options.
Schedule Your Microwave Repair
Book your LG microwave repair today. Most appointments are available within 24 hours, and every completed repair includes a 90-day parts-and-labor guarantee.