A, screw type ice and water machine compressor failure causes:

1, the compressor AC contactor on the overload protector action.

2, the compressor capacitor burned out (single-phase).

3, check whether the compressor coil winding is normal, the general winding value should be greater than 7

Exclusion method:

1, lightly press the RESET reset button in the overcurrent protector can be.

2、Replace the capacitor of the chiller and industrial chiller.

3, if it is determined that the winding problem, please replace the compressor.

Second, the power supply failure (shutdown thermostat no display, etc.) causes:

1, utility disconnection, lack of phase, unstable.

2, check whether the phase sequence protector is burned out.

3, the fuse is burned.

Exclusion method:

1, check whether the utility is normal, to work again after the utility is normal.

2, replace the phase sequence protector and fuse.

Third, the high and low pressure switch failure (frozen water pump running but the compressor stopped) cause:

1, chiller and industrial chiller filter blockage.

2, the system is not enough refrigerant caused by low pressure alarm.

3, circulating cooling water stopped working caused by high pressure alarm.

4, the heat exchangers cooling fan stopped working caused by high pressure alarm.

Exclusion method:

1, clean the filter or replace the filter of the same type.

2、Refill the chiller and industrial chiller system with refrigerant.

3、Check whether the cooling water circulation pump and the heat exchanger cooling fan are working normally, and repair or replace them.