What's wrong with the refrigerator filter freezing and not cooling? Chongqing refrigerator maintenance

The reasons are as follows: 1. It may be because the high-pressure pipe of the refrigerator is connected with a drying filter or the screen in the high-pressure filter is half blocked. 2. This may be due to the covered electrode blocking half of the interface. 3. The blockage may be caused by the uncleanness of the system. Suggested treatment: 1. If the joint between the high-pressure pipe and the drying filter of the refrigerator or the filter screen inside the high-pressure filter is half blocked, it is necessary to cut and clean the joint between the high-pressure pipe and the drying filter before connecting it, or clean the filter screen inside the high-pressure filter with detergent. 2. If it is the result of covered electrode's semi-blocking of the interface, it is necessary to remove the copper tube with medium welding to keep the compressor copper tube reddish, then pull out the redundant solder on the inner tube wall with thick iron wire, and then quickly insert the butt copper tube to a sufficient depth for normal welding. 3. If the blockage is caused by the unclean system, you need to check whether the entrance of the sewer pipe is blocked or whether it is blocked inside. If the entrance is only blocked, you need to pick out the dirty things with a cotton swab. If the drain pipe is blocked, you need to contact a professional maintenance master for cleaning. Or use high-temperature heating to heat the inside of the refrigerator and let water flow into the water inlet. If the heating doesn't work, there may be something wrong with the compressor of the refrigerator, which needs to be handled by a professional maintenance master.