Telefunken
Reduced Output – Weak Magnetron or Power Supply
Microwave light, fan, and turntable run, but food heats very slowly compared to normal.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Aging magnetron with reduced emission, Partially failing high-voltage capacitor, Low mains voltage, Faulty power level control on control board
How to Fix / Troubleshooting
Safety first: Unplug the microwave before internal checks.
- Compare heating performance: Heat 250 ml of water for 1 minute on full power. It should be noticeably hot. If only lukewarm, output is low.
- Check power level setting: Ensure the Telefunken is set to 100% power and not a lower level.
- Check mains voltage: If possible, measure the voltage at the outlet under load. Very low voltage can reduce microwave power.
- Professional service: Weak magnetrons and marginal HV capacitors require specialized testing and replacement. Contact a technician for accurate diagnosis.
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Repair Difficulty
Professional Required
5/5
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