MasterPro Insufficient Heating / Under-Temperature Condition

Cooking time counts down but food remains undercooked; cooker seems not hot enough.

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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

Weak heating element, Faulty temperature sensor reading too high, Poor contact between inner pot and heating plate, Incorrect voltage supply (using 110 V unit on 220 V or vice versa)

How to Fix / Troubleshooting

Safety first: Unplug and cool the cooker before inspection.

User checks:

  • Confirm you are using the correct voltage model for your region.
  • Ensure the inner pot is the original MasterPro pot and sits flat on the heating plate.
  • Verify that the lid is sealing properly and that pressure is actually being reached on pressure programs (float valve rises).

Hardware checks:

  • Test the heating element resistance; a significantly higher than normal resistance can indicate a weakened element.
  • Inspect the bottom temperature sensor and wiring for damage.

Resolution: Replace the main heating element if it is out of specification. If the element is good, a misreading sensor or faulty control board may be limiting heat and should be serviced.

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Repair Difficulty

Hard 4/5

Required Part

Main Heating Element
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