When The Freezer Is Used At The Peak, How To Check The Function?

In the late summer and early autumn season, the freezer is still in the peak period of use in the industry. Many merchants will find that their own freezer cooling effect is poor or even not cooling, melted ice cream, non-cooled beverages, and deteriorated frozen foods.

There are four tips to help you check the reason of not cooling

In the off witch state, remove the screws on the plate cover compressor system, install the special "pair wire" for repair, install the connecting pipe and the pressure gauge, close the valve, and rotate the intake valve stem to make the intake valve in a three-way state. Observe whether the door pressure is normal.

1. If the pressure is normal, the refrigerator refrigeration compressor can be turned on to see if the pressure drops to a normal value. Use the back of the finger to touch the compressor outlet to the condenser pipe to see if there is a significant temperature rise. If there is a certain temperature rise and the evaporator pipe is frosted, the refrigerant is insufficient.

2. If the pressure is lowered, the outlet pipe is not heated or the heat is cool for a while, which proves that the refrigeration system has ice blockage or dirty blockage.

3. If the pressure is similar to the pressure at the time of shutdown, it proves that there is a problem with the valve plate assembly of the refrigeration compressor of the refrigerator, and the compressor loses the suction and exhaust capability.

4 If the pressure also drops, but falls below the normal value, you should check whether the evaporator is frost-free or deficient frost, condensation.

Reasons collection of refrigerators without refrigeration

Q1. The high pressure output buffer tube in the compressor is broken, or the screw fixing the tube is loose, causing the high pressure tube not to vent,

And the low pressure pipe does not inhale, so the compressor runs but does not make cooling effect.

Solution: cut the boot case, replace the buffer tube, or tighten the screws

Q2. The refrigeration system leaks and the refrigerant run out. Although the compressor is running, there is no refrigerant evaporating and absorbing heat in the system, so the temperature in the freezer does not drop.

Solution: First find out the leaking part of the system, and after welding, pressure testing, and evacuation, add refrigerant to a certain amount, according to the evaporator full frost or the rated temperature in the cabinet

Q3. Due to improper welding or improper use, the freezer has a leak point in the refrigeration system. The refrigerant in the refrigeration system will not leak even if it is completely leaked for a certain period of time.

Solution: without refrigerant, it is impossible to achieve refrigeration. In this case, it is best to have the professional carefully inspect and repair the leak point, then vacuum dry, refill the qualified amount of refrigerator refrigerant, and use the above freezer tips and Simple maintenance, Meibaijia hope to help you solve the problem of non-cooling.

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