Air conditioners today make little-to-no noise besides when it kicks on and kicks off. Even then, those noises become part of your everyday life – and often go unnoticed. But sometimes your system may make a strange sound, which will likely cause some concern for a homeowner. Below are four common sounds your AC unit may be making and what to do if you hear them.
Buzzing or humming
When internal components of your AC become loose, like screws or fan blades, it can create a buzzing sound. Other things like debris can create a humming or buzzing noise. This problem can be fixed by having an AC repair company like Star Mechanical come out and assess your AC unit. It may be as easy as having your unit cleaned or may be something more serious, like tightening important screws or fan blades.
ACs should never be very loud, so if you’re hearing a banging noise, there’s a good chance something is loose or broken inside your unit. Components like the crankshaft, connecting rods, blower, fan or equipment housing may be unbalanced, causing a loud noise to occur while it’s running. This will need to be repaired immediately.
Squealing or screaming
When a blower fan or outdoor fan motor is going bad, a loud squealing can be heard through the ducts of your system or through the vents of a unit. The housing may also squeal if it’s malfunctioning. The best thing to do is shut it down immediately and call for repair, as continual use may damage the entire system beyond repair.
Clicking or rattling
When an AC is kicking on or off, a slight clicking noise is very common and is nothing to worry about. However, if a loud clicking noise occurs, this could indicate a problem. First, check your unit for leaves on the outdoor portion of the unit. After cleaning the unit and the filter, if the noise is still heard, contact an AC repair company.
AC units are a central part of most homes but if sounds go unchecked, it could lead to costly repairs down the road. Call our team at Star Mechanical today to schedule a service check-up for your AC system!