Unit frequently turns on and off (short cycling) without reaching set temperature.

1. Clean filters: Ensure unrestricted airflow by washing and drying the filters.

• 2. Check sensor location: Make sure the room temperature sensor is not touching the evaporator coil or located in the cold air stream; it should sense room air, not discharge air.
• 3. Avoid heat sources: Do not place the unit where it is directly exposed to sunlight or near heat-generating appliances, which can confuse the thermostat.
• 4. Adjust setpoint: Increase the set temperature slightly to reduce cycling frequency.
• 5. Technician diagnosis: If short cycling persists, a technician should check refrigerant charge and control board operation.