What to Do When the Car Air Conditioning Suddenly Stops Working?
2 Answers
Poor contact of the main control switch or damage to the fan motor coil. Use a multimeter to measure the switch resistance; if the resistance is too high, it indicates a fault that needs to be repaired. When the set screw between the fan motor and the fan blade becomes loose, it is necessary to tighten the set screw. When the capacitor is open or short-circuited, the capacitor needs to be checked and replaced with one of the same specifications. Go to an auto repair shop or 4S after-sales service for a detailed inspection and repair of the air conditioning, which is generally free within the warranty period.
I've been driving for over twenty years and have encountered sudden air conditioning failures several times. The first step is not to panic—check the dashboard for any air conditioning indicator lights or error codes. A blown fuse is usually the most common issue; refer to the manual to locate the fuse box in the engine compartment or the passenger side, then check if the corresponding fuse is blown. If it is, simply replace it. If the compressor doesn't make any sound when starting, it could be due to a loose belt, a seized compressor, or a lack of refrigerant. On hot days, refrigerant leaks can often be spotted quickly by visible oil stains. Simple DIY fixes like resetting the vehicle's system can sometimes work, but more complex issues like control unit failures require professional diagnosis. Remember, when the air conditioning fails, opening windows for ventilation is the top priority for safety to avoid fatigue-related accidents. Regular maintenance, such as adding refrigerant and cleaning the filter, can extend its lifespan.
