Analysis: common problems and solutions of ice maker

&First, common problems and solutions of ice maker < br / >


&The compressor works but does not cool.

&Cause: leakage of refrigerant or damage of two-way solenoid valve.

&Repair: add refrigerant or replace solenoid valve after leak detection


&The compressor works all the time to cool, and the water pump works all the time to pump water. The ice keeps getting thicker, but it can't automatically enter the de icing process to drop ice.

&Cause: the water temperature probe fails, which makes the intelligent control system unable to effectively sense the water temperature and work, misjudge the program error, or the controller failure.

&Maintenance: use a multimeter to measure the resistance value of the water temperature probe (when the water temperature in the water tank is close to 0 ℃, pull out the three core wire in the control box and test the resistance value of two wires on both sides). If the resistance value is above 27K, it is judged that the controller is broken and should be replaced. If the resistance value is below 27K, It is necessary to disconnect any one of the two wires and adjust the resistance value to 27K to 28K by means of series connection of resistance.



&The machine enters the de icing process (the water pump stops working and the compressor stops cooling), but the ice does not fall off.

&Cause: the two-way solenoid valve is damaged.

&Repair: replace the solenoid valve body or outer coil.



&The water shortage light is on, but the machine doesn't supply water automatically.

&Cause: 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 in the pipe, if there is no water, open the water channel and restart the machine. If the water inlet solenoid valve fails, replace it.



&Nbsp; & nbsp; 5. The compressor works but the water pump doesn't work all the time (no running water) < br / >
&Cause: the water pump is damaged or the water pump is blocked by scaling.

&Repair: clean the water pump or replace it.



&Second, identify the fault according to the flashing condition of the indicator light < br / >


&Nbsp; & nbsp; 1. The power indicator keeps flashing rapidly, and the machine does not work: < br / >
&Fault: detection water temperature probe open circuit.

&Repair: open the back cover plate, open the cover of the electrical control box above the compressor, find a three core connector, check whether it falls off or has poor contact, and then plug it again.



&Nbsp; & nbsp; 2 or 3 ice lamps flash circularly, and the machine does not work: < br / >
&Fault: abnormal ice making and de icing of the machine; < br / >
&Nbsp; & nbsp; repair: restart: < br / >
&First, check whether the fan and water pump work normally. If there is any abnormality, remove it first, and then check whether the compressor has started. If not, check the controller and compressor accessories. If it has started, judge the refrigeration system fault and repair it according to the corresponding maintenance method.

&If there is no fault in the refrigeration system, it can make ice normally, but it does not deice all the time. After 90 minutes, the machine will judge that it is abnormal and make a protective shutdown. It is necessary to use a multimeter to measure the resistance of the water temperature probe (when the water temperature in the water tank is close to 0 ℃, pull out 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, it is judged that the controller is broken and should be replaced. If the resistance is below 27K, the controller should be replaced, It is necessary to disconnect any one of the two wires and adjust the resistance value to 27K to 28K by means of series connection of resistance.



&3. The ice full lamp flashes quickly.

&Fault: it means that the deicing time exceeds the specified time, and the machine will be automatically protected.

&Nbsp; & nbsp; maintenance: < br / >
&In this case, restart the skateboard. If it appears repeatedly, check whether the skateboard can swing up and down flexibly.

    b. If the two-way solenoid valve is damaged, this phenomenon will also occur. The machine can refrigerate, but when the ice reaches the set thickness and enters the de icing state, the water pump stops working and the ice does not fall off. During the inspection, the forced de icing (long press and hold the selection key for 3 seconds) is adopted. If there is no obvious airflow sound in the ice maker, the two-way solenoid valve is considered to be broken. First, check whether the power supply of the solenoid valve is normal, if the power supply is normal The valve body itself can not be opened very rarely.

&There is no water in the water tank, it doesn't show water shortage, the ice is loose and has impurities.

&Maintenance: the fault is caused by impurities in the water tank after ice making for many times, or the water is rich in minerals, which makes the surface of the water level probe scale and affects the detection sensitivity of the probe. Drain the residual water and clean the inside of the water tank and the surface of the probe.



&4. 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. Re plugging can generally solve the problem.



&5. The water flow of the spray pipe is not smooth, and part of the ice is incomplete.

&Nbsp; & nbsp; fault: water spray pipe hole is blocked; < br / >
&Repair: use tweezers or other sharp things to clean the water out of the spray pipe when the ice making water is running