I. What is the problem with the refrigerator not refrigerating the display cabinet
The refrigerated display cabinet can keep the freshness of the products and provide a better display effect, but in the process of use , Sometimes the refrigerator of the display cabinet is not refrigerated, so what is the reason why the refrigerator display cabinet is not refrigerated?
1. The fan does not work. If the fan of the air-cooled display cabinet does not work, the display cabinet will not be cooled.
2. Too many items in the display cabinet will block the air outlet, which will also affect the cooling effect.
3. The poor contact of the power supply causes the refrigerator of the display cabinet to be unpowered and unable to cool.
4. If the voltage is too low or too high, the normal operating voltage of the refrigerated display cabinet is 187V-242V according to the national standard (unless otherwise stated by the manufacturer), and the compressor cannot be started if it is too low or too high.
5. Compressor failure. Generally, when the compressor is working normally, it will emit a subtle and vibrating motor sound. If there is no sound, it means that the compressor is broken and cannot be cooled.
6. The refrigerant leaks, and the display cabinet has no refrigerant to participate in the refrigeration process, so there is no refrigeration.
7. The pipes are blocked. It may be that the air in the repaired refrigerated display cabinet has not been pumped out cleanly, and there is still water in it, which makes it unable to cool normally.
8. When the low temperature switch is not turned on, and the ambient temperature is lower than the normal startup temperature of the temperature controller, it is necessary to turn on the low temperature switch to start the temperature controller.
Second, what should I do if the refrigerator display cabinet is not refrigerated
If the refrigerator of the display cabinet is not refrigerated, we can check the cause of the failure one by one, and then repair it:
1. Use an electric pen or a multimeter to check whether the power socket has electricity and whether the power plug of the refrigerated display cabinet is well connected. If not, it can be powered on.
2. If the power supply is normal, check whether the low temperature switch of the freezer is turned on.
3. If the inspection is for refrigerant leakage, you can replace the refrigerant by yourself or wait for a special person to come to repair it. If you replace it yourself, you need to open the cabinet of the display cabinet, replace the buffer tube, and find out the system leakage. After welding repair, pressure test and evacuation are qualified, add refrigerant to a certain amount.
4. Usually, if the outlet is hot, it means that the capillary or the dryer is blocked and needs to be removed for cleaning. If there is a fault, it needs to be repaired.
5. If the compressor is damaged, it is usually impossible to repair it by yourself, and you need to contact the manufacturer or specialized maintenance personnel for on-site maintenance.
