The reasons for the fan not rotating and the evaporator frosting are as follows: 1. Bad coil sensor; 2. Bad fan capacitance; 3. Bad motor.

 

The troubleshooting methods are as follows: 1. Judge by querying parameters (replace the coil sensor); 2. Replace the fan capacitor; 3. Replace the motor.

The reasons for the high pressure failure are as follows: ⒈The water tank temperature sensor is not placed correctly, which leads to accurate temperature detection; ⒉The water tank sensor is bad; ⒊The high pressure switch is broken; ⒋The system is blocked; 5. The stop valve is not opened or not fully opened.

 

The troubleshooting methods are as follows: ⒈Detect the actual temperature of the water tank, if the detected temperature is higher than the displayed temperature, the sensor needs to be replaced; 2. Replace the water tank sensor; 3. If the pressure is normal, the pressure switch is broken, replace the pressure switch; 4. Check the high pressure of the system If the pressure is too high, the throttling element is blocked, and the system is cleaned; 5. Fully open the shut-off valve.

There are three reasons for the failure of excessive exhaust gas: ⒈ fluorine leakage and lack of fluorine in the system; ⒉ blockage in the system; ⒊ bad exhaust sensor.

 

The troubleshooting methods are as follows: ⒈Check the actual discharge temperature of the compressor and the high pressure of the system. The discharge temperature will be high, low pressure will not necessarily be low, high pressure will be low, use foam check points to make up leaks and fluoride; ⒉ use nitrogen to clean the system , Replace the throttling element, add a detachable filter before the throttling element; ⒊ Replace the exhaust temperature sensor when the temperature is normal.

The cause of the failure of the water flow switch is either a problem with the parameter setting or the water flow port is not short-circuited.

 

The troubleshooting methods are as follows: 1 reset the parameters and short-circuit the water flow port.