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Common AC Problem: Noises

August 22, 2018

During the summer, your air conditioner (AC) works harder and longer.  That high demand may cause a problem to rear its ugly head.  In this multi-part post, we’ll take a look at some of the most common AC problems, talk about the possible causes, and provide suggestions for tackling each problem.


While your AC is running, you should hear the hum of the blower, a click when your air conditioner turns on, and the whir of the outside condenser fan.  Other noises – such as rattling, screeching, thumping, clanging, or banging – mean your system is having problems.  Typical causes of noise from the AC unit include: a belt wearing out, loose hardware, a failing motor, refrigerant issues, or blower issues.  But try these things first: make sure the filter is clean, that the air vents in all rooms are unblocked, and that there are no obstructions around or in the outside unit.  If you still hear strange noises, contact a professional AC service technician before the situation worsens and leads to big repair bills and prolonged downtime.

Avoid AC Problems

Summer can be the best time of the year, so don’t let air conditioning problems hinder you from enjoying it.  Be sure to get annual AC maintenance visits, so it will run efficiently and be ready for the high demand of the summer’s heat.  If you live in the Nashville area and experience any heating or cooling problems, call on Interstate AC Service at (615) 832-8500.