Microwave Oven Not Heating
A Microwave Oven with the "Not Heating" fault usually shows it through the turntable spins but food stays cold, the display and light work normally with no heat output, and a faint hum with no warming effect. This is typically traced back to a failed magnetron, a blown high-voltage diode or capacitor, and a faulty door switch preventing the magnetron from firing. A technician resolves it by safely testing the high-voltage components and door switches, then replacing the failed part.
Symptoms
- The turntable spins but food stays cold
- The display and light work normally with no heat output
- A faint hum with no warming effect
Likely causes
- A failed magnetron
- A blown high-voltage diode or capacitor
- A faulty door switch preventing the magnetron from firing
How it's repaired
Safely testing the high-voltage components and door switches, then replacing the failed part.
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Other Microwave Oven issues
Frequently asked questions
Why is my Microwave Oven not Heating?
The usual causes are a failed magnetron, a blown high-voltage diode or capacitor, and a faulty door switch preventing the magnetron from firing.
How is this fixed?
By safely testing the high-voltage components and door switches, then replacing the failed part.
Can this be repaired at home, or does it need the workshop?
Most cases of not Heating in a Microwave Oven are fixed on-site; if bench-level work is needed, the unit can be brought to the workshop instead.
Which areas is this repair available in?
Yeshwanthpur, Mathikere, New BEL Road, Gokula, and Sanjaynagar. Call 74112 25242 to arrange a visit.
Ready to get this fixed?
Same day visits · 9:00 AM – 9:00 PM, All Days · All brands