There are many reasons for not cooling. The possible reason is the tripping of compressor protection device. The compressor overload protection will trip, which means that the high pressure of the system is too high or the overheat current is too large.
Causes and troubleshooting of high pressure overheating: too much refrigerant. Appropriately reduce the refrigeration dose. Poor heat dissipation. Check whether there is dirt on the condenser pipe and clean the condenser.
The piping system is blocked. Refer to the pressure gauge for judgment, troubleshooting and re system treatment.
Dust and scaling on evaporator or filter screen. When the air flow becomes smaller and the system pressure and temperature lose constant, clean the evaporator or filter screen.
Lack of fluorine is also possible. In case of lack of fluorine, the exhaust temperature of the compressor will overheat and trip the overheated load protection switch.
The power of the air conditioner must match the refrigeration area, otherwise the air conditioner may not achieve the refrigeration effect. The compressor is the heart of the air conditioner refrigeration system, and the refrigerant circulation or flow in the system is realized by the operation of the compressor.
Once the compressor stops running, the refrigeration ends. The compression process of the compressor to the refrigerant is that the compressor sucks the evaporated saturated gas from the evaporator, increases its pressure and temperature after compression, and then discharges it into the condenser for condensation.