LG Microwave Not Heating: Is It the Magnetron or Something Simpler?
A microwave that runs but doesn't heat food is alarming but often fixable. Before assuming the magnetron is bad, check…
Apr 5, 2026
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LG Over-the-Range Microwave: Exhaust Fan and Filter Maintenance
The exhaust system in your LG over-the-range microwave keeps cooking odors and grease out of your kitchen. Here is how…
Apr 5, 2026
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LG Microwave Repair
Professional LG Microwave repair by factory-certified technicians. Genuine OEM parts, 90-day warranty, same-day service available.
Apr 5, 2026
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F-1 – Humidity / Steam Sensor Error
The humidity sensor (used in Sensor Cook modes) is not responding. Auto-sensor cooking features will be disabled. Manual cooking modes…
Apr 5, 2026
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F-3 – Turntable Motor Error
The turntable motor is not receiving a signal or has failed. The rotating tray will not turn, causing uneven heating.…
Apr 5, 2026
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F-5 – Power Relay / Triac Error
The power relay or triac controlling the magnetron circuit has failed. The microwave may run (light, turntable) but produces no…
Apr 5, 2026
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F-9 – Door Switch / Latch Error
One or more of the three door safety interlock switches has failed. The microwave cannot confirm the door is safely…
Apr 5, 2026
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F-6 – Inverter PCB Error
Found on LG inverter microwaves (NeoChef series), this indicates a fault in the inverter power board that regulates magnetron output.…
Apr 5, 2026
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