Product information:

Color classification: Three-function detector to send electronic data, four-in-one detector to send electronic data

Instructions:
Frequency conversion board detection: connect the detection line of the frequency conversion board of the detector to the communication interface of the frequency conversion board of the refrigerator (make sure that the frequency conversion board has 220v power supply before testing), the detector automatically matches the parameters of the frequency conversion board, and the compressor can be started directly after matching correctly. If the compressor starts, it can be judged that the compressor and the inverter board are normal. If it does not start after 3 tests, please use the compressor test function to test the compressor. (Note that once the compressor is started, it will take 3-5 minutes to test again, and the test will be performed after the system pressure is balanced.)
Inverter compressor detection; connect the detector compressor detection line to the refrigerator compressor, the detector automatically matches the compressor parameters, and the compressor can be started directly after the matching is correct. If the compressor does not start, release the start button for 5 seconds and then test again. If it does not start after 3 tests, it can be judged that the compressor is faulty. (Note that once the compressor is started, it will take 3-5 minutes to test again, and the test will be performed after the system pressure is balanced.)
Pulse solenoid valve detection; connect the solenoid valve detection line of the detector to the solenoid valve interface, press the solenoid valve detection red and green buttons respectively, and detect the solenoid valve twice to determine whether it is good or bad. (Note that the detector outputs DC220 pulse voltage, do not touch it during use. After power-on, the output end is prohibited from short-circuiting to avoid burning the detector. Before measuring, please use a multimeter to check whether the solenoid valve is short-circuited to avoid burning the detector.)

Packing list:

Frequency conversion detector*1