How does the refrigerator solenoid valve work? What are the symptoms if the refrigerator solenoid valve is broken?

Refrigerator solenoid valve The role of

In layman's terms, the main function of the refrigerator solenoid valve is to control the flow direction of the refrigerator refrigerant. Under its normal operation, different room temperatures achieve different cooling effects, and the refrigerator can be divided into Refrigeration, freezing, and greenhouse. Without this solenoid valve, the refrigerator will It cannot be classified in this way, there may be only one temperature space.

Working principle of refrigerator solenoid valve

There are two types of solenoid valves, one is a direct-acting solenoid valve, and the other is Pilot-operated solenoid valves have similar working principles, but there are also differences in details. When the direct-acting solenoid valve is powered on, the electromagnetic force generated by the solenoid coil opens the valve. When the power is turned off, the electromagnetic force disappears and the valve closes. After the pilot solenoid valve is energized, the electromagnetic force formed first opens the pilot hole, forming a pressure difference around the closing member. This pressure is used to open the valve. After the power is turned off, the electromagnetic force first disconnects and closes the pilot hole. , forming a pressure difference that is opposite to that when energized before, and use this pressure difference to close the valve.

What are the symptoms if the solenoid valve of the refrigerator is broken

When the solenoid valve of the refrigerator is broken, the refrigerator cannot operate normally. The most direct manifestation is that the flow of refrigerant in the refrigerator is uncontrolled and the refrigeration system becomes chaotic. For example, the refrigerator temperature is too low, resulting in ice and freezing. The room is not cooling, or the greenhouse is not cooling. If you do not pay attention to the problem at this time, it will be very easy to damage other components in the refrigerator.

First of all, we must understand that the main function of the solenoid valve of the refrigerator is to convert the flow direction of the refrigerant, control the refrigeration status of different room temperatures, and optimize the refrigeration structure of the refrigerator. So there are four main common faults:

1. The solenoid valve cannot be started;

2. The coil of the solenoid valve is burned out;

3. The driver board components are damaged;

4. The valve plug of the solenoid valve is stuck;

Solenoid valve inspection and solution:

1. Use a multimeter to check whether the voltage at both ends of the solenoid valve plug is normal;

2. Check whether the fuse on the driver board is burned out;

3. Observe whether the components on the driver board are broken down or burned;< /p>

4. Use a multimeter to check whether the resistance value of the coil is normal;

If Solenoid ValveOr if there is a problem with the driver board, just replace it with a new one. Be careful not to connect the wrong capillary interface when installing the solenoid valve.

Above It isThe working principle of the refrigerator solenoid valve, what will happen if the refrigerator solenoid valve is broken Content introduction, if you want to know more relevant information, please log in to www.diancifa.cc to view the Dianwei Pneumatic.