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Although the refrigeration system and control circuit of the low-temperature storage box are relatively complicated, the most common faults are mainly faults of the circulation system and the circulatory part;
The following are some common faults presented in low-temperature storage boxes and their solutions.
1. After power on, the main power supply air switch will be disconnected automatically
Remedy: Check the compression of the refrigeration system of the cryo storage box If it is damaged it will cause short circuit and current protection.
The accessories can be exchanged. If there are no original accessories, you can replace the refrigerator compressor with a considerable power by calculation and weld the pipes;
br/ After adding After checking the airtightness of the pipeline, suck R-12 Freon 23.00z off, add it and then turn it on tocheck if it is normal.
Error Reason: This error is generally caused by unstable power supply as the stage starts first so the damage is usually in the stage;
Under normal circumstances, as long as the time-delay stabilized power supply is installed, the error generally does not occur again.
2. The temperature in the box stops working before the set temperature is reached.
Remedy: Although the box does not reach the set temperature the box stops working Control panel The displayed temperature has reached the set temperature.
This is because the thermistor used to measure temperature is damaged and needs to be replaced. If original accessories are not available, a temperature control system can be installed to rectify the error.
3. The cooling effect of the refrigerator will be reduced and people verfeel an electric shock when they touch the metal part of the box.
Remedy: Use a multimeter to measure the refrigerator leakage and use the Paragraph test.
If the high temperature compressor is on alone, check if the low temperature storage box is live due to the compressor leaking.
Statically check the compressor connection, paying attention to the motor winding connector plug. If signs of inflammation can be seen on the housing, this indicates a leak.
Using the method of replacing the connector along with part of the surrounding case, install the case, power it up to run and check for leaks;
