Masterbuilt Temperature Regulation / Overfeeding Pellets

Grill overshoots set temperature by more than 50°F and runs too hot

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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

Incorrect P-setting or smoke mode, Faulty RTD temperature probe reading low, Control board calibration drift, Excessive airflow from leaky door gasket

How to Fix / Troubleshooting

Safety first: Use heat-resistant gloves when working near a hot grill.

  • 1. Verify settings:
    • Ensure the grill is not in a high P-setting or BOOST mode.
    • Set a standard temperature (e.g., 225°F) and observe.
  • 2. Check door seal:
    • Inspect the lid gasket for gaps, tears, or compression.
    • Replace the lid gasket if it is damaged or missing.
  • 3. Compare temperatures:
    • Use a reliable oven thermometer or probe at grate level.
    • If the display reads much lower than actual, the RTD is likely faulty.
  • 4. Replace RTD or board:
    • Replace the temperature probe (RTD) if readings are inaccurate.
    • If a new probe does not correct the issue, replace the control board.
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Repair Difficulty

Medium 3/5

Required Part

Temperature Probe (RTD Sensor)
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