How to judge the fault based on the indicator light of the ice machine

How to judge the fault based on the indicator light of the ice machine

1. The power indicator light keeps flashing quickly and the machine does not work: The cause of the failure: the water temperature probe is open. Repair method: Open the rear cover, open the cover of the electric control box above the compressor, find a three-core connector, check if there is any dropout or poor contact, then reconnect it.

2. The three ice lamps flash cyclically, and the machine does not work: Cause of failure: The machine is abnormal in ice making and de-icing; Repair method: restart,

3. First check whether the fan and water pump are working normally. If there are any abnormalities, remove them first, and then check whether the compressor has started. Repair according to the corresponding repair method

. 4. If there is no fault in the refrigeration system, the ice can be produced normally, but the ice has been produced without deicing, and the machine will automatically judge the abnormal operation after 90 minutes 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 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 It is judged that the controller is bad and should be replaced. If the resistance is lower than 27K, you must disconnect any one of the two wires, and adjust the resistance to between 27K and 28K by connecting resistors in series.

5. The ice full light flashes quickly. Cause of failure: It means that the deicing time exceeds the specified time, and the machine is automatically protected. Maintenance method: In this case, restart the machine. If it happens repeatedly, check whether the skateboard swings up and down flexibly. If the two-way solenoid valve is damaged, this phenomenon will also occur. The machine can be cooled, but when the ice cube reaches the set thickness and enters the deicing state, the water pump stops working and the ice cube does not fall off. Forced deicing is used during inspection (long press the selection key) 3 seconds), if there is no obvious sound of air flow in the ice maker, the two-way solenoid valve is considered to be broken. You can first check whether the solenoid valve power supply is normal. If the power supply is normal, you can replace the coil and test the machine. The valve body itself cannot be opened. less. There is no water in the water tank, no water shortage, loose ice cubes and impurities. Maintenance: The fault is because there will be impurities in the water in the water tank after repeated ice making, or the water is rich in minerals, which will cause the surface of the water level probe to become fouled and affect the probe's detection sensitivity. Drain the remaining water to clean the inside of the water tank and clean the surface of the probe.

6. There is water in the water tank, indicating water shortage. Maintenance method: Check whether the two-core and three-core connectors in the control box are reliably connected. Reconnecting can usually solve the problem.

7. The water flow of the sprinkler pipe is not smooth, and some ice blocks are incomplete: The cause of the failure: the hole of the sprinkler pipe is blocked; repair method: in the ice making state, use tweezers or other sharp objects to clean the water outlet on the sprinkler pipe Attach debris until the water in each hole is unblocked.

8. The ice making is normal but it is difficult or not to remove the ice: The cause of the failure: the two-way solenoid valve does not work or is stuck; repair method: after the ice maker is started, after ice cubes are produced on the ice maker, long press the selection key 3 Enter the forced deicing state within seconds, 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 wiring. If there is vibration, the ice can be repeatedly de-iced several times, which can solve the stuck problem of some solenoid valves. If the problem still exists, the solenoid valve is damaged and the solenoid valve needs to be replaced.