Unit short cycles: turns on and off frequently, running only a few minutes at a time.

Safety first: Turn OFF power before any internal inspection.

• Step 1 – Verify setpoint: Avoid setting the temperature extremely low or high; use moderate setpoints to reduce rapid cycling.
• Step 2 – Clean filters and coils: Ensure airflow is not restricted, which can cause quick temperature changes at the sensor.
• Step 3 – Check sensor location: Make sure the indoor ambient sensor is not directly in the cold air stream or near heat sources. Reposition if necessary.
• Step 4 – Monitor for error codes: If short cycling is accompanied by codes like E3, E5, or P2, address those underlying issues.
• Step 5 – Professional evaluation: If the unit is significantly oversized or protections are tripping, consult a technician for load calculation and system check.