What are the reasons for the Corolla's air conditioning not cooling?
4 Answers
Analysis of the reasons for the Corolla's air conditioning not cooling is as follows: 1. Excessive dirt: Too much dirt in the refrigerant and refrigeration oil of the air conditioning system can clog the filter screen, increasing resistance and reducing the flow of refrigerant to the expansion valve, leading to the air conditioning not cooling. 2. Insufficient refrigerant: Since refrigerant can evaporate, air conditioning systems used for three to four years may require a refrigerant refill. Insufficient refrigerant can also be observed through the sight glass on the top of the dryer. During normal operation, if continuous slow bubbles are seen in the sight glass, it indicates insufficient refrigerant. 3. Reduced condenser heat dissipation capacity: A decrease in the condenser's heat dissipation ability can also lead to a reduction in the air conditioning's cooling performance.
I've been driving a Corolla for a while and have encountered the AC not cooling several times. The most common issue is insufficient refrigerant, possibly due to a leak in the pipeline that needs checking. Adding a can of refrigerant can solve it quickly, but don't let too much leak out. Another reason could be a broken compressor; if there's no humming sound from the engine when pressing the A/C button, it might be faulty. Dirty filters are also annoying, as poor airflow makes the cooling feel worse and the cabin hotter. I replace the filter every few months to save money and hassle. Electrical issues like blown fuses or faulty relays should also be checked—it's quite simple to replace them yourself. Driving in hot weather is miserable, so I suggest pulling over, opening the windows to lower the cabin temperature and prevent heatstroke before heading to a repair shop for a professional diagnosis—don't push through. Regular maintenance, like cleaning the condenser, can extend the AC's lifespan and ensure a comfortable ride.
Last time on the highway, my Corolla's AC suddenly stopped cooling, making me sweat profusely. I quickly pulled over and found that air was coming out of the vents but it wasn't cold, suspecting a system issue. After repairs, it turned out the refrigerant was low and needed a refill. The compressor was fine, but the condenser fins were clogged—cleaning them solved the problem. Another possibility was the evaporator freezing and blocking the pipes; stopping the car and turning off the A/C to let the fan blow and thaw it out helps—avoid repeatedly switching it on and off. Faulty temperature control sensors are also common; check by feeling the vent's temperature changes to see if it's malfunctioning. Now I remember to adjust the fan speed and let it blow for a few minutes to preheat the system before turning on the AC in hot weather to avoid sudden failures. A cost-saving method is regular maintenance, refilling refrigerant, and keeping the system sealed to prevent breakdowns on the road.
Air conditioning not cooling I figure out money-saving tips, Corolla might be due to a clogged filter, replacing it only costs a few tens to fix. Refrigerant leakage is a common cause, topping it up saves time and effort, don't delay. Compressor failure is costly to repair but using A/C less prevents overload and extends lifespan. Blown circuit fuse is easy to fix by replacing with a new one. Suggest ventilating while driving to cool down safely without draining power, regularly check system pressure to prevent leakage risks for relaxed driving.
