What Causes the Low-Pressure Pipe of Car Air Conditioning to Not Be Cold?

1 Answers
StAdaline
07/29/25 12:43pm
Here are the reasons why the low-pressure pipe of a car air conditioning system is not cold: 1. Insufficient refrigerant in the air conditioning system. 2. Inadequate air conditioning pressure. 3. Refrigerant pipeline leakage. 4. Compressor malfunction. Check the air conditioning pipes for any signs of leakage. If there is a leak, it must be repaired, and the system must be vacuumed before adding refrigerant. Below are the inspection steps for air conditioning not cooling: 1. Check if the system has refrigerant. If not, pressurize the system to locate the leak, then refill it. 2. If refrigerant is present, check if the compressor is functioning. If not, inspect the air conditioning pressure switch, temperature control switch, and their wiring for any issues. 3. Check the air conditioning heat dissipation and see if the fan is working. Clean the condenser. 4. Replace the air conditioning filter.
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