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No heat is the most common symptom for Kenmore 721.66312500 (72166312500, 721 66312500). It takes 15-30 minutes to fix on average. The instructions below from DIYers like you make the repair simple and easy. Many parts also have a video showing step-by-step how to fix the "No heat" problem for Kenmore 721.66312500. So, if your 721.66312500 microwave not heating, runs but doesn't heat or turns on but doesn't heat food, the following info will help you identify the problem.
Parts for Kenmore 72166312500
The Microwave Door Switch is an OEM replacement part for LG countertop microwaves. It monitors the door position electrically to prevent unsafe oven operation if ajar.
Symptoms of a bad door switch include:
Causes involve normal wear of electrical contacts and internals through many open/close uses. Exposure to moisture intrusion from spills may potentially damage sensitive switch circuitry over time as well.
This genuine LG replacement switch is also compatible with Sears/Kenmore microwaves.
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The Magnetron is an OEM part for LG microwaves. It is responsible for generating the microwaves that cook or heat the food inside the appliance. The magnetron converts electrical energy into microwave radiation, ensuring efficient and even heating.
Causes of a bad magnetron can include prolonged use, electrical surges, or overheating. Over time, these factors can lead to the magnetron wearing out or failing completely.
Symptoms of a bad Magnetron include:
This OEM LG part is also compatible with Sears/Kenmore models.