Panasonic Weak Heating / Partial Heater Failure

Multicooker heats very slowly or never reaches cooking temperature.

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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

Partially open heating element, Failing heater relay, Low mains voltage, Faulty temperature sensor causing early cut-off

How to Fix / Troubleshooting

Safety first: Unplug before internal checks.

  • Confirm mains supply: Avoid using long extension cords or sharing the outlet with high-power appliances.
  • Test heater resistance: Measure the main heater resistance and compare with service specs. A significantly higher resistance than normal indicates a failing heater; replace the main heater plate assembly.
  • Check relay contacts: Inspect the heater relay on the PCB for pitting or overheating. Replace the heater relay or entire main control PCB if damaged.
  • Sensor calibration: A faulty NTC may cause premature shutoff. Test and replace the heater plate NTC sensor if readings are incorrect.
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Repair Difficulty

Hard 4/5

Required Part

Main heater plate assembly
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