With temperatures rising in the summer, a failing car AC makes for a hot and uncomfortable ride. While a reputable auto repair service can get the cooling system working again, here are some red flags that let you know you have a problem with the AC that needs immediate attention.

When to Go for AC Repairs

1. Lack of Cold Air

If your car’s air conditioner stops blowing cool air into the cabin, the problem could occur for several reasons. While refrigerant can naturally escape from the system over time, the most common culprit is leaking refrigerant, which happens when the cooling system has a broken seal, O-ring, or other damaged components.

Other reasons could be weakened airflow or reduced pressure coming from the vents due to a loosened blower hose or damaged ventilation fan. Have an auto repair professional check your AC to pinpoint the exact source of trouble.

2. Blowing Warm Air

If the AC blows warm air instead of cold, it can mean there’s already widespread damage in the system. When water gets inside and combines with the refrigerant, it results in a highly corrosive acid that destroys seals and other internal components, leading to your AC’s premature failure.

Sometimes, the presence of hot air may also be due to a blocked expansion valve, worn-out compressor clutch, or blown fuse. Any of these prevents the AC from cooling the air.

3. Loud Noises

For the most part, the car’s AC runs quietly. When you hear loud, unusual noises, like rattling, grinding, or squealing, there’s a problem. Let an auto repair technician check the system since the sound may be coming from a worn-out bearing or faulty clutch, both found in the compressor. It’s also possible there’s debris blocking the fan, or the fan belt is damaged.

4. Musty Odor

Do you smell something funky or musty coming from the vents when you turn on the AC? If yes, it’s likely due to a dirty cabin filter or the presence of mold in the AC unit, possibly in a water-filled evaporator case. 

5. Water Puddles Inside

Water inside the cabin shouldn’t be ignored, especially when it’s not raining outside. If you notice a puddle underneath the dashboard or on the floorboards, it may have come from a blocked drain in the evaporator case of the AC.

At the first signs of trouble with your car AC, turn to G & J Auto Center for reliable auto repairs. Located in Columbia, MO, they’ve helped countless motorists keep their vehicles in tip-top shape with comprehensive repair and maintenance services, including oil changes, vehicle inspections, and transmission repairs. Call (573) 474-5819 to set an appointment or visit them online today.