Indoor unit frequently turns on and off (short cycling) without reaching the set temperature.

Safety: Turn off power before accessing sensors or PCB.

Steps:

• 1. Verify settings: Ensure the unit is not in Dry or Auto mode with a high setpoint that could cause frequent cycling.
• 2. Clean filters and coils: Dirty components can cause rapid temperature swings near the sensor.
• 3. Check room sensor location: Ensure the room sensor is not directly in the cold air stream or touching the coil. Reposition slightly if necessary so it senses room air.
• 4. Avoid heat sources: Do not place heat-generating devices (TVs, lamps) directly under the indoor unit.
• 5. Sizing issue: If the unit is significantly oversized, short cycling may be unavoidable. Consider using a lower fan speed or consulting an HVAC professional about zoning or resizing.