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Why is the temperature of supermarket freezer rising?

Why is the temperature of supermarket freezer rising?

All supermarket refrigerators have an appropriate ambient temperature range, and can only maintain the best operating condition within this temperature range. For example, the climate type of refrigeration is "N" (temperate). At 16-32 degrees, refrigeration is not the best way to work, but this does not mean that refrigeration does not work normally when it is below 32 degrees, but it has certain characteristics. To a certain extent, it can withstand any cold storage capacity. If the ambient temperature exceeds this capacity, the freezer will not stop and the temperature may be too high.

Of course, this problem only occurs when the ambient temperature exceeds a certain limit, and will not affect the performance of the supermarket freezer, so it can be used with confidence.

Common symptoms of supermarket refrigerators:

1. Refrigerant leakage, power (line, gas) insulation damage, etc.

2. Dirty blockage and ice blockage of the refrigeration system, condenser dust, etc.

3. Electrical circuit breakage, fuse blown, overload protection program contact separation caused by overheating or overcurrent, pressure relay contact separation caused by abnormal pressure in the refrigeration cooling system

4. Compressor motor windings, fan motor windings, solenoid valve coils, relay coils, contacts, etc. are lost.

5. The compressor is stuck, the bearing of moving parts is stuck, etc.

6. The compressor valve is broken, the piston is pulled, the fan blade is broken, various parts are broken, etc.

Be sure to pay attention to the overhaul and maintenance of the freezer, and you must pay special attention to the temperature rise in summer.

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