GE air conditioner displays HI and may struggle to cool the room

Steps:

• Verify temperature: Use a separate thermometer to confirm actual room temperature. If the room is extremely hot, HI may be normal.
• Improve conditions: Close doors and windows, use blinds to reduce solar gain, and reduce heat sources in the room.
• Check filter and coils: Clean the air filter and ensure coils are clean to maximize cooling capacity.
• Sensor test: If HI appears in a moderate-temperature room, test and replace the room thermistor as needed.