AUTHORISED SALES & SERVICE AGENTS

When the input voltage is below the low voltage cut-off point (21-23V) for more than 3 seconds, Er-01 will appear on the display. With this error, all outputs of the compressor, evaporator fan, fresh air device, condenser, and heating will stop automatically. All switches are locked except the ON/OFF switch, and the display shows an error code. Start the vehicle and check that the error disappears after running the vehicle for a period of time. This error is unrecoverable until the auxiliary battery voltage reaches a minimum of 24V.​

When the input voltage is above 31V for more than 3 seconds, Er-02 occurs. With this error, the AC system stops, and all outputs cease, displaying an error code. Please check the DC-DC charger and power supply circuit or contact our closest agent for an inspection or repair.

The short circuit error is 'H,' and the open circuit error is 'L.' Please check if the sensor circuit is faulty. After detecting an error, the controller will automatically revert back to normal operating specifications. If this error occurs during the cooling mode, the compressor will wait for 5 minutes after every 60 minutes of operation. If this error occurs during the heating mode, the heating will wait for 5 minutes after every 30 minutes of output.

When the defrosting sensor is in a short circuit or open circuit, ER-16 occurs. Please check the sensor circuit or determine if the sensor is faulty. After resolving the error, the controller will automatically return to its normal working state. If this error occurs during cooling mode, the compressor will wait for several minutes after every 60 minutes of operation If this error occurs during heating mode, the heating output will not be affected.

When the controller detects that the refrigerant pressure in the system is below the set value, Er-03 occurs. Cooling stops automatically, and the error code is displayed on the screen. Please check the refrigerant pressure system and resolve this error. The controller will not resume normal operation until the pressure value has been restored for more than 3 seconds. Check for any refrigerant leaks in the system, repair them, and regas.

When the controller detects that the refrigerant pressure in the system is above the set value, Er-04 occurs. Cooling stops automatically, and the error code is displayed on the screen. Please check the refrigerant pressure system and remove the error. The controller will not resume operation until the pressure value has been stable for more than 3 seconds. Check if the condenser fan is operating correctly and ensure that the cond is not obstructed with debris.​