Indoor unit shows H2, heating stops and may resume after some time.

Safety first: Turn OFF power before cleaning or opening the unit.

• Step 1 – Clean filters: Remove and wash the indoor air filters thoroughly. Let them dry and reinstall.
• Step 2 – Check indoor fan: Run the unit in FAN mode and verify strong airflow. If airflow is weak or fan does not run, inspect the fan motor and blower for obstructions.
• Step 3 – Inspect coil sensor: Ensure the indoor coil sensor is properly attached to the coil and wiring is intact.

When to call a technician: If H2 persists with clean filters and normal fan operation, a sensor or PCB fault may be present and should be checked by a technician.