Judgement method of refrigerator solenoid valve is good or bad
1. Maintenance of bistable refrigerator solenoid valve
(1)Use a multimeter to detect the resistance of the solenoid valve coil is about 2K or more (the resistance value is different according to the requirements of each refrigerator manufacturer); (2)Use a multimeter to detect the pulse voltage. You can adjust the multimeter function knob to 50V DC, use the black test pen to contact the N line, and the red test pen to contact the main board to output the signal to the solenoid valve. Maintain the pulse annunciator (the length of the pulse signal output depends on the design procedure of the motherboard). When the signal is output, the multimeter pointer will swing to the left for a duration of seconds. If the hands don't move, it means the main board is malfunctioning, not the solenoid valve itself. 2. Maintenance of the solenoid valve of the monostable refrigerator
(1) Use a multimeter to measure the 220V AC voltage at the solenoid valve plug;
(2) Observe whether the components on the drive board are broken or burned;
(3) Check whether the fuse of the drive board is burnt out;
(4) Check whether the resistance value of the coil is normal with a multimeter.
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Judgement method of refrigerator solenoid valve is good or bad
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