Many customers have occasional failures after buying back the industrial ice maker and operating it for a period of time. Today, I will teach you how to judge the cause of the failure based on the symptoms of the ice maker and the blinking of the indicator light, and teach you some maintenance methods.

1. Symptom: The compressor of the ice maker machine works but does not make ice

Reason: The refrigerant leaks or the solenoid valve is damaged and the solenoid valve is not closed tightly.

Maintenance: After leak detection, repair the leak and then add refrigerant or replace the solenoid valve.

2. Symptoms: The compressor has been working to be able to refrigerate, and the water pump has been working to pump water. The ice cubes continue to thicken, but the ice can not be dropped during the dehydration process.

Reason: The failure of the water temperature probe makes the intelligent control system unable to effectively sense the water temperature and work, misjudging the program error, or the controller failure.

Maintenance: Use a multimeter to measure the resistance of the water temperature probe (when the water temperature in the water tank is close to 0℃, unplug the three-core wire in the control box and test the resistance of the two wires on both sides), if the resistance is lower than 27K Above, it is judged that the controller is broken and should be replaced. If the resistance is lower than 27K, you need to disconnect any one of the two wires, and adjust the resistance to 27K to 28K by connecting the resistance in series. between.

3. Symptoms: The large ice making machine enters the de-icing program (the water pump stops working and the compressor stops cooling) but the ice does not fall off.

Reason: The defrost solenoid valve is damaged.

Repair: Replace the solenoid valve or outer coil.

4. Symptoms: The water shortage light is on but the machine does not automatically enter water.

Reason: There is no water in the pipeline, or the water inlet solenoid valve is faulty and the valve does not open.

Maintenance: Check the water inlet of the pipeline, and restart the machine after opening the waterway if there is no water. If the water inlet solenoid valve is faulty, replace it.

5. Symptoms: The compressor is working but the water pump has not been working (no running water).

Reason: The water pump is damaged or the internal scale of the water pump is blocked.

Maintenance: Clean the water pump or replace the water pump.

Judge the fault according to the blinking of the indicator light of the ice maker:

1. The power indicator keeps flashing quickly and the machine does not work:

Trouble: The detection water temperature probe is open.

Maintenance: Open the rear cover, open the electrical control box cover above the compressor, find a three-core connector, check whether there is any disconnection or poor contact, and plug it in again.

2.3 indicator lights flashing cyclically, the machine does not work:

Trouble: The ice making and deicing of the machine is abnormal.

Maintenance: A. Cut off the power supply and restart the machine. Firstly, check whether the fan and water pump are working properly. If there are any abnormalities, remove them first, and then check whether the compressor has started working. If there is no work, check the parts near the compressor. If it has started, Determine the refrigeration system failure and follow the corresponding maintenance method.

B. If there is no fault in the refrigeration system, the ice can be produced normally, but the ice has been produced without de-icing. After 90 minutes, the machine will work abnormally and be a protective shutdown. The set of water temperature probes that need to use a multimeter to measure the temperature (when the temperature of the underwater tank is close to 0 degrees, unplug the three-core wire in the control box, and measure the resistance of the two wires on both sides), if the resistance is above 27K, then If the controller is judged to be bad, it should be replaced accordingly. If the resistance is lower than 27K, it is necessary to disconnect either of the two wires, and adjust the resistance to between 27K and 28K by means of crossover resistors.

3. The ice full light flashes quickly:

Failure: It means that the deicing time exceeds the specified time, the machine will automatically protect,

Maintenance: A. Generally, in this case, just restart the machine. If it happens repeatedly, check whether the skating board swings up and down flexibly.

B. If the two-way solenoid valve is damaged, this phenomenon will also occur. The machine can cool, but when the ice cube reaches the set thickness and enters the deicing state, the water pump stops working and the ice does not fall off. Forced deicing during inspection, (long press Select the key for 3 seconds). If there is no obvious airflow sound in the ice maker, the two-way solenoid valve is considered to be broken, and the solenoid valve can be checked for normal power supply. The coil test machine can be replaced, and the valve body itself cannot be opened very rarely.

4. There is no water in the water tank of the ice maker, no water shortage, loose ice cubes and impurities.

Fault: This fault is caused by impurities left in the water in the water tank after repeated ice making, or the water is rich in minerals, which causes the surface of the water level probe to become fouled, which affects the sensitivity of the probe's detection.

Maintenance: Drain the remaining water to clean the inside of the water tank and clean the surface of the probe.

5. There is water in the water tank, indicating lack of water.

Maintenance: Check whether the two-core and three-core connectors in the control box are reliably connected. Reconnecting can usually solve the problem.

6. The water flow of the sprinkler pipe is not smooth, and some ice cubes do not play well.

Trouble: The spray pipe is blocked;

Maintenance: In the state of controlled water flow, use tweezers or other sharp objects to clean the debris on the water outlet hole on the spray pipe. Until the flow of water in each hole is unobstructed.

7. Ice making is normal but dehydration is difficult or not dehydrated;

Trouble: The two-way solenoid valve does not work or is stuck;

Maintenance: After starting the ice maker, after ice cubes are generated on the ice maker, press and hold the select button for 3 seconds to enter the forced deicing state. Touch the solenoid valve by hand. If it does not vibrate, it means that the solenoid valve is not supplied normally. Check the control. Board and connecting line. If there is vibration, you can repeatedly remove the ice several times, which can solve the problem of blocking of some solenoid valves. If there are still problems, it means that the solenoid valve is damaged and the solenoid valve needs to be replaced. get more information from https://www.icemakerchina.com/.