Display 05 indicates that the temperature sensor is faulty.
Cause and treatment method
1. It is recommended that the user replace the temperature sensor.
2, the host operation, no heating, check whether the refrigerant content of the unit is missing, whether the air in the heat exchanger is drained during installation, it is recommended that the user install the water tank heat exchanger when the air is not drained, start to run, fill the same type of refrigerant, must be vacuumed and then charge the operation.
Power failure: The user connects the power supply according to the standard sequence of left zero and right fire, and measures the voltage of the incoming power supply to reconnect or replace the matched power supply to find out the cause and solve the power failure