Various fault phenomena and maintenance methods of the ice cube machine
Oct 14 , 2022
Various fault phenomena and maintenance methods of the ice cube machine
1. The failure phenomenon of the square ice machine: the compressor is working but not cooling, the cause of the failure: the refrigerant leaks or the two-way solenoid valve is damaged and not properly closed.
Maintenance method: After leak detection, add refrigerant or replace the solenoid valve.
2. The failure phenomenon of the square ice machine: the compressor keeps working to cool, the water pump keeps working to pump water, and the ice cubes keep thickening, but it cannot automatically enter the de-icing program to remove the ice.
The reason for the failure of the square ice machine: the water temperature probe is faulty, which makes the intelligent control system unable to effectively sense the water temperature and work, the program judges wrongly, or the controller is faulty.
The maintenance method of the square ice machine: measure the resistance value of the water temperature probe with a multimeter (when the water temperature of the water tank is close to 0, unplug the three-core wire in the control box, and test the resistance value of the two wires on both sides), if the resistance value is above 27K , the controller is judged to be bad and should be replaced. If the resistance value is lower than 27K, disconnect any one of the two wires, and adjust the resistance value between 27K and 28K through the series resistor.
3. The ice cube machine enters the deicing program (the water pump stops working, the compressor stops cooling), but the ice cubes do not fall off. The reason for the failure: the two-way solenoid valve is damaged.
Maintenance method: replace the solenoid valve body or outer coil.
4. The water shortage light of the square ice machine is on, but the machine does not automatically feed water. The reason for the failure: there is no water in the pipeline or the water inlet solenoid valve is faulty, and the valve cannot be opened.
The maintenance method of the square ice machine: Check the water inlet of the pipeline. If there is no water, open the waterway and restart the machine. If the water inlet solenoid valve is faulty, please replace it.
5. The compressor of the square ice machine works, but the water pump has not been working (no running water). The reason for the failure: the water pump is damaged or the inside of the water pump is scaled and blocked. The maintenance method of the square ice machine: clean the water pump or replace it.
Judging the fault according to the indicator light of the ice cube machine
1. The power indicator of the ice cube machine keeps flashing and the machine does not work:
Cause of failure: The probe that detects the water temperature is open circuit.
The maintenance method of the square ice machine: open the rear cover, open the electric control box cover above the compressor, find the three-core connector, check whether it is off or has poor contact, and then plug it in again.
2. The three cycles of the ice cube machine flash, and the machine does not work:
The cause of the failure: the ice making and deicing of the machine is abnormal.
Maintenance method: restart the machine
3. Check whether the fan and water pump are working normally. If there is any abnormality, remove it first, and then check whether the compressor has started to work. If it does not work, check the controller and compressor accessories; Repair method to repair.
4. If there is no fault in the refrigeration system, the ice can be made normally, but the ice has not been de-iced. After 90 minutes, the machine judges that the work is abnormal and shuts down for protection. It is necessary to use a multimeter to measure the resistance value of the water temperature probe (when the water temperature of the water tank is close to 0 degrees) , unplug the three-core wire in the control box, and measure the resistance value of the two wires on both sides). If the resistance value is above 27K, it is judged that the controller is bad and should be replaced. If the resistance value is lower than 27K, you must disconnect the two Either of the wires and adjust the resistance value between 27K and 28K with a resistor in series.
5. The ice full light of the square ice machine flashes quickly, the cause of the failure: it means that the deicing time exceeds the specified time, and the machine automatically protects.
The maintenance method of the square ice machine: In general, restart the machine. If it happens repeatedly, check whether the slide plate swings up and down flexibly.
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