Haier Airconditioner error codes

Haier Inverter AC Error Codes

Haier Inverter AC Error Codes

Error Code Description Solution
E1 High-pressure protection Check the refrigerant level and ensure the outdoor unit has proper ventilation.
E2 Indoor unit coil sensor malfunction Inspect the indoor coil sensor and replace it if defective.
E3 Low-pressure protection Check for refrigerant leaks and ensure proper pressure in the system.
E4 Compressor discharge temperature protection Check for compressor overheating; ensure proper airflow and refrigerant levels.
E5 Communication error between indoor and outdoor units Inspect the communication wiring and ensure it is properly connected.
F1 Indoor ambient temperature sensor error Check the indoor ambient temperature sensor; replace if necessary.
F2 Outdoor ambient temperature sensor error Inspect the outdoor ambient temperature sensor; replace it if faulty.
H1 Defrosting mode This is a normal operation when the system is defrosting; wait for the process to complete.
H6 Indoor fan motor malfunction Inspect the indoor fan motor for faults and replace it if necessary.
P0 Inverter module protection Check the inverter module; reset or replace if it continues to fail.
P1 High or low voltage protection Ensure a stable voltage supply; install a voltage stabilizer if needed.
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