Refrigerator solenoid valve At which position
< span style="font-size: 16px;">The solenoid valve of the refrigerator is at the bottom of the refrigerator. Open the cover at the back of the refrigerator. There is a black valve body on the left side of the compressor. This thing is the solenoid valve. Solenoid valve is used to control the temperature of the refrigerator, so it is best not to adjust it casually , if the adjustment is not good, the temperature of each room will be destroyed.
How to replace the solenoid valve of the refrigerator< /p>
Monostable electromagnetic Valve maintenance: Use a multimeter to check whether there is 220 AC voltage at the solenoid valve plug;check whether the fuse on the drive board is burned out;check whether the capacitor on the drive board has breakdown or leakage;check whether the solenoid valve coil has a resistance of 9.6k.
Inspection of the bistable solenoid valve: Use a multimeter to check that the resistance of the solenoid valve coil is above 2k (the resistance value varies according to the requirements of each refrigerator manufacturer);use a multimeter to check the pulse voltage, and adjust the multimeter function knob to the DC range. 50v, use the black test lead to touch the n line, and the red test lead to touch the motherboard to the solenoid valve output signal terminal. Under normal circumstances, at the 15th second (depending on the refrigerator manufacturer, but basically within this range) the motherboard will give the solenoid valve a Maintain the pulse signal generator (the length of the pulse signal output depends on the design process of the motherboard). When the signal is output, the multimeter pointer will swing to the left for approximately seconds. If the needle does not move, it means there is a fault with the mainboard, not the solenoid valve itself.
Both monostable and bistable solenoid valves may leak, so leak detection of solenoid valves is also an indispensable step. When performing pressure-maintaining leak detection on the high and low pressure of the refrigerator, the solenoid valve part is connected to the high-pressure side. Since the solenoid valve body is large and installed in a narrow space next to the compressor, it is best to disassemble the valve body. After disassembly, if you find oil stains on the welded parts of the valve body, it means there is an obvious leakage point and the welding needs to be strengthened. If there are no obvious oil stains, apply soap foam around the solenoid valve weld. If there are bubbles overflowing, it means there is a small leak. Do not immerse the solenoid valve in water during testing, otherwise the drive board and coil may be short-circuited due to moisture.
1. Remove the valve body from the box.
2. Open the casing and unplug the coil Connecting wires.
3. Connect the valve core and Shell separation.
4. Replace the coil and shell body.
5. Valve core body and Place the coil in place.
6. Plug in the coil related wires and secure the electromagnet.
Generally Solenoid valves are marked with arrows or the purpose of each interface. There are three interfaces, one of which is connected to the main refrigerant pipe, and the other two interfaces go to the two temperature zones of the refrigerator. These two interfaces need to be determined in conjunction with the electrical control system diagram. There is an electrical wiring diagram posted on the refrigerator body.
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