Pool heater runs but pool does not reach set temperature; heating is very slow or seems ineffective.

Safety: Turn off power before cleaning the unit.

Steps:

• Check setpoint and mode: Confirm the Fairland controller is set to the correct heating mode and target temperature.
• Clean the coil: Gently wash the outdoor coil with a hose to remove dust and debris. Maintain clear airflow around the unit.
• Verify run time: Ensure the pool pump and heater are allowed to run long enough each day; heat pumps often need many hours of operation.
• Cover the pool: Use a pool cover to reduce heat loss, especially at night.

If performance remains poor:

• A technician should check refrigerant charge and confirm the Fairland model capacity is appropriate for your pool size and climate.