Why are the refrigerated display cabinets in the store not refrigerating?

The weather is getting hotter and hotter. Many supermarkets, fresh food stores, and fruit stores have started to use refrigerated display cabinets. Many users found that the fresh-keeping cabinet suddenly stopped cooling after turning on the machine. As a veteran in the refrigeration industry who has been working for more than ten years, I summarize the reasons why the machine does not cool, hoping to help everyone.

1. First check whether the power circuit is normal. After turning on the machine, observe whether the red power indicator light of the refrigerator is on. If it is on, it means that the power circuit is normal. If the power indicator light is not on, find a professional electrician to check the power circuit.

2. After turning on the machine, the machine starts for three minutes, and the compressor starts after three minutes. After the compressor starts, you can hear the humming sound of the compressor. If the compressor still does not start after three minutes, it means that the compressor is protected by high or low pressure. The dust on the compressor radiator must be cleaned by power off. After cleaning, turn on the machine power button again, delay for three minutes again, find the red reset button on the compressor unit, press the reset button and release it, and the compressor will start.

3. Turn on the power, delay for three minutes, the compressor starts, but the refrigerator still does not refrigerate. Observe the pressure gauge of the compressor unit. The normal high pressure is about 15 kg and the low pressure is about 2 kg. If the low pressure is too low, it is very likely that the compressor is leaking fluorine. You need to find a professional master to find the fluorine leak point and refill it.

4. The above are common reasons why the refrigerator does not refrigerate. Commercial refrigerators are non-standard products. Both the machine principle and the use environment are more complicated than household appliances, and such common phenomena will often be encountered. If the problem is complicated, you must find the manufacturer's professional after-sales service, so the manufacturer's after-sales guarantee is very important.

5. Finally, I would like to remind everyone that the radiator will accumulate thick dust after a period of use. The compressor radiator of the refrigerator must be cleaned regularly to ensure the heat dissipation effect of the compressor.