Lg Microwave Symptoms — Complete Troubleshooting Guide

These 16 symptom guides cover LG microwaves, and most of them turn on the difference between the control side and the high-voltage side. A unit that runs but will not heat has a failure past the transformer — the magnetron, the Smart Inverter board, or the high-voltage capacitor and diode. A Smart Inverter model that quits a few seconds in is usually its own protection catching an intermittent door switch or an overcurrent condition. A microwave that keeps running points at a stuck board relay or a stuck door switch, and a noisy one is diagnosed by matching the sound to the part.

The guides sort symptoms into what you can act on and what you can only identify. Blank displays start with a power reset. Turntables that will not turn start with the coupler and the roller ring. Doors that will not open start with the release lever and the latch hook. Each guide states plainly at which step the diagnosis stops being something to continue at home, so you can tell early whether you are heading for a quick fix at home or a decision about the appliance.

The boundary here is unusually hard, and it is worth stating before you unplug anything: a microwave's high-voltage capacitor can hold a lethal charge after the unit is disconnected from power. Opening the cabinet to reach the magnetron, the inverter board or the capacitor is professional-only regardless of skill with other appliances, and a microwave that sparks, arcs or switches itself on should be unplugged and left closed. EasyBear services LG microwaves across Sacramento and the Bay Area.