Most Common Air Conditioning Problems

Air conditioners seem to fail at the most inconvenient times. Usually, the reasons for failure are relatively easy to repair or can be prevented with regular maintenance.  

We’ve compiled a list of the most common AC problems people experience and what you can do about them.

AC Unit Won’t Come On
Sometimes an air conditioning unit won’t come on, but the fan inside the home seems to be working OK.  Check your thermostat to make sure it is working properly and set correctly. A broken thermostat can easily disable an entire AC system.

If you can rule out the thermostat, check your home’s main electrical panel and the circuit breaker outside near the unit. If you suspect it may be the breaker, try to figure out what caused it to trip before you attempt to reset it. If you flip the breaker and it does trip again, call a professional to diagnose and repair the problem.

Excessive vegetation growing around your unit, like grass, leaves and debris can be easily sucked into the vents and cause damage to the capacitor. Make sure this area is clear. If you suspect this might have happened, you will need to call for service.

AC Unit is Making Noise
It’s normal for air conditioners to make some noise. However, if you hear vibrations or loud rattling noises, something could be wrong. Your air conditioner could have been installed incorrectly and should be checked by a professional.

Sometimes people report squealing sounds when the AC is running. This may actually be coming from your air handler, the part of the ac system that regulates and directs air through the ductwork. Most air handlers have direct-drive motors, but older units may be belt-driven. The squealing noise sometimes occurs when the belt connecting the blower to the motor slips. If you suspect this, shut your ac unit off and call a professional for proper diagnosis.

AC Runs, But Doesn’t Cool
If air is flowing through your vents, but not coming out cold, you might have a stalled condenser coil – the part of the AC that produces cold air. The condenser fan will run even if the condenser isn’t working properly. Condenser failure can be caused by a blown fuse or tripped circuit breaker. Sometimes, it isn’t the condenser at all and a lack of cool air can be due to low refrigerant. In either case it is best to contact a professional to help you diagnose the problem.

At One Hour Heating & Air Conditioning, we recommend regular maintenance to keep your unit running smoothly and to help you avoid costly repairs and unexpected system failure. If you suspect problems with your air conditioner, contact us today or schedule a repair online today.

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