Truck Refrigeration Unit Common Faults and Solutions

In the process of long-distance transportation, the truck refrigeration unit will fail due to problems such as long time of use, so how to solve it?

Guchen Thermo is the leading transport refrigeration unit manufacturer in China, and it said that, some minor problems with truck refrigeration units can be resolved on their own. In addition, Guchen Thermo can supply all kinds of truckrefrigeration units and van refrigeration units for your cold-chain transporting demands. For example, Guchen Thermo Super Snow transport refrigeration systems are usually used for the big truck bodies with 7.6 m - 9.6 m length or 35~65 m³refrigerated truck bodies. With R404a refrigerant, the temperature range is -20℃ to +30 ℃ for transporting fresh or deep frozen cargoes. 

I. Truckrefrigeration unit compressor does not work

Reasons: 1, incorrect wiring, low voltage

Solutions: 1, check the wiring 2, check the line power

II. Short cycle of truck refrigeration unit

Reasons: 1, exhaust valve leakage 2, evaporator fan reverse 3, lack of refrigerant

Solutions: 1, replace the compressor 2, correct 3, repair leaks and re-injection

III. Long-term or continuous operation of truck refrigeration units

Reasons: 1, lack of refrigerant 2, the thermostat contact stick 3, condenser dirty

Solutions: 1. Repair leakage and fluid replacement 2. Replacement 3. Cleaning

IV. Truckrefrigeration unit pressure is too highhttp://www.guchenthermo.com/products/truck-refrigeration-units/

Reasons: 1, too much refrigerant 2, the system has air 3, the condenser is blocked

Solution: 1, remove excess 2, system vacuum 3, eliminate

V. Truckrefrigeration unit pressure is too low

Reasons: 1, lack of refrigerant 2, the compressor suction or exhaust valve failure

Solutions: 1. Repair leakage and fluid replacement 2. Replace compressor

VI. Truck refrigeration unit compressor oil loss

Reasons: 1, lack of refrigerant 2, expansion valve blockage 3, compressor suction temperature is too high

Solutions: 1, repair leakage add liquid 2, remove or replace 3, adjust the expansion valve

Keywords: truckrefrigeration unit, truck freezer manufacturers, truck refrigeration system