: Plug it back in and run a brief test (e.g., heating a cup of water for 30 seconds). If the "HOT" warning returns instantly, the control board likely needs replacement. Summary of Common Causes Likely Cause Recommended Action Code "HOT" on Display Faulty Thermal Sensor Replace NTC Thermistor No Fan Noise Fan Motor Failure Replace Cooling Fan Exterior Case Hot Poor Ventilation Clean Vents / Move Unit Buzzing + Heat Magnetron Failure Professional Repair Required Juq703uc Hot
: Start by directly answering the prompt in the first sentence to ground the reader immediately. Clear Aims juq703uc hot