Shanghai Sairui Electrical Maintenance Co., Ltd.

& Zhongke Meiling After-sales Hotline: Zhongke Meiling Low Temperature Refrigerator Troubleshooting Methods:
Please don’t worry if Zhongke Meiling Low Temperature Refrigerator fails. Shanghai Bajiu engineers will teach you how to deal with some common faults. We hope it will be helpful to you. .
1. After the low-temperature refrigerator is powered on, the air switch of the main power supply is automatically turned off:
Check whether the compressor of the first-stage refrigeration system is damaged. If it is damaged, it will cause a short circuit and cause power protection. Accessories can be replaced. If there are no original accessories, you can replace the refrigerator compressor with a comparable power according to calculations, weld the pipes, check the air tightness of the pipes by pressurizing, then vacuum and add R Freon. , and then turn on the computer to check whether it is normal.
This fault is generally caused by an unstable power supply. Because the first stage starts first, the damage is usually on the first stage. In this case, generally as long as a delay stabilized power supply is installed, it will not cause any further damage. This fault occurs.
2. The noise of the low-temperature refrigerator is too loud:
. Check whether the bottom plate is strong. If the refrigerator is unstable, (constant temperature and humidity box) adjust the movable screws so that the four corners are firmly supported on the bottom plate. Check whether there are any objects. Access to the back of the refrigerator.
3. The cooling effect of Zhongke Meiling low-temperature refrigerator is poor:
If the ambient temperature is lower than 10 degrees, you need to turn on the low temperature compensation switch, turn it on without heating, and check the heating wire and magnet according to the detection method in the mechanical refrigerator does not start. If the sensitive temperature switch, heating wire and magnetic sensitive temperature switch are normal but there is no voltage input, it can be determined that the main control board is faulty or the circuit is faulty. If it is lower than 10 degrees or even 10 degrees, please consult the user to increase the ambient temperature.
4. The temperature inside the low-temperature refrigerator has stopped working before it reaches the set temperature:
Although the temperature inside the box has not reached the set temperature, the temperature displayed on the panel has reached the set temperature. This is because the thermistor that detects temperature is damaged and needs to be replaced. If there are no original parts, you can reinstall a temperature control system to eliminate the fault.
In order to avoid failure of the low-temperature refrigerator, it is recommended to do the following maintenance work:
Ensure the ambient temperature. The working environment temperature of the ultra-low temperature refrigerator must be below &C, and the surrounding area must be well ventilated. Excessive temperature or poor ventilation can easily cause equipment to be overloaded and damaged.
.Clean the cooling filter regularly (once every two months). If the filter is not cleaned for a long time, dust will clog the mesh, resulting in poor heat dissipation, damage to the cooling motor, and then damage to the compressor. Please refer to the instruction manual for cleaning instructions.
.Regularly clean the ice on the refrigerator door seal. If the door seal is not tight, the thermal insulation effect will be seriously reduced, which may easily cause damage to the compressor due to long-term overload operation.