What are the solutions for car air conditioning not cooling?
2 Answers
Solutions for car air conditioning not cooling: 1. If the fuse is blown, replace it; 2. If circuit wires are loose or disconnected, repair them; 3. If the air conditioning unit is faulty, repair or replace it; 4. If the compressor belt is loose, slipping, or damaged, adjust its tension or replace the belt; 5. If the compressor's suction and discharge valves are not working properly, repair or replace the discharge valve; 6. If the electromagnetic clutch is not engaging well, repair or replace it; 7. If the filter screen in the liquid storage tank is clogged, clean, repair, or replace it; 8. If the expansion valve is opened too wide, preventing refrigerant from evaporating in time in the evaporator, clean, repair, or replace the expansion valve. When adjusting the expansion valve, observe the low-pressure side pressure while making adjustments.
The worst thing about driving in summer is when the AC stops working. Once my car's AC suddenly quit, and I figured out a troubleshooting routine. Before rushing to the repair shop, open the glove box to check if the cabin air filter is clogged with willow catkins – leaving it unchanged for a year can cut airflow by half. Then pop the hood and inspect the condenser surface for mud buildup; rinsing it with a hose often brings instant cooling. If that doesn't help, crawl underneath to examine the compressor belt – if it's loose, slipping, or squeaking, it likely needs replacement. Finally, check the temperature of the high/low pressure lines; if both pipes are scalding hot, the refrigerant has probably leaked out, requiring professional recharge equipment.
