What Causes Slow Cooling of Car Air Conditioning After Prolonged Sun Exposure?

1 Answers
MacChristopher
07/30/25 10:22am
Car air conditioning cools slowly after prolonged sun exposure due to the compressor protection device tripping. Causes and solutions for excessively high pressure and overheating: 1. Excessive refrigerant: Appropriately reduce the refrigerant amount. 2. Poor heat dissipation: Check for dirt on condenser pipes and clean the condenser. 3. Blocked pipeline system: Refer to pressure gauge readings for diagnosis and resolution, then reprocess the system. 4. Dust accumulation on evaporator or filter: Reduced airflow causes system pressure and temperature imbalance; clean the evaporator or filter. 5. Possible refrigerant deficiency: When refrigerant is insufficient, compressor exhaust temperature becomes excessively hot, causing the overload protection switch to trip.
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