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Company name:Huzhou sinuote refrigeration appliance co., LTD

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Phone: 13362291972/13357195648

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Address: no. 5 workshop, no.20 north national road, daxi town, huzhou city, zhejiang province


Analysis of common failure phenomena and causes of refrigerated display cabinet

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Analysis of common failure phenomena and causes of refrigerated display cabinet

Date of release:2019-02-15 Author: Click:

Compressor is the core of refrigerated display cabinet, as long as it is mechanical, it may be broken down. Similarly, there will be some faults in the use of the compressor in the refrigerated display cabinet. The common faults and cause analysis of the compressor in the refrigerated display cabinet are introduced below.


Refrigerated display cabinet

One.Failure phenomenon: the refrigerator dryer does not operate:

Possible reason: the compressor line is disconnected, the fuse is burnt out, the thermal relay action, the high voltage switch action, the compressor blocking circuit is falsely connected or loose.


Two.the failure phenomenon: the cold storage unit exhaust pressure is too high:

Possible causes: inlet valve failure; Hydraulic cylinder failure; Pressure sensor failure (Intellisys control unit); Failure of pressure gauge (relay control unit); Fault of loaded solenoid valve (1SV); Too high pressure setting; Pressure switch failure (relay control set).


Three. fault phenomenon: the unit current is large:

Possible reasons: the voltage is too low; Loose wiring; Unit pressure exceeds rated pressure; Oil separator plug; Fault of contactor; Host failure; Main motor failure.


Four.Fault phenomena: large oil consumption of the unit or large oil content of the compressed air:

Possible reasons: too much cooling dose, the correct position should be observed when the unit is loaded, at this time the oil level should not be more than half; Low exhaust pressure when the unit is running; Blockage of return pipe; The installation of the return pipe (the distance from the bottom of the oil separation core) does not meet the requirements; Oil separation core rupture; The separation cylinder internal partition is damaged; Oil leakage of the unit; Coolant deterioration or overdue use.


Five.Failure phenomenon: cold storage unit cannot start:

Possible causes: broken fuse wire; Bad temperature switch; Loosening of wiring; Transformer broken; No power input (control unit); Main motor thermal relay operation; Fan motor thermal relay operation; Failure is not eliminated (control unit); Controller failure



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Website: en.snowt.cn

Telephone: 13362291972/13357195648

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