While you may notice sounds when the A/C or heater kicks in, there are specific noises that can signal a potential problem.
Pay close attention to “strange” noises so when you call your HVAC technician, you’ll be able to provide helpful information.
Listed below are possible suggestions of what may be going on. To be sure, contact your local HVAC company to schedule a service appointment.
Humming/Vibrating: This is the sound of parts that may have come loose, or a problem with the motor or compressor.
Buzzing: This may indicate a number of things like loose parts, a refrigerant leak or the unit needs cleaning.
Clicking: It depends on if you hear this noise when the unit starts/shuts off or if it’s constant. It may be an electrical issue or connection to the thermostat.
Banging/Thumping: These noises point to something going on with the blower or motor. If the noise gets worse, it may be that a loose part has broken and is rattling around inside the unit.
Grinding: This noise is usually caused due to compressor problems or failure.
Screeching: This usually indicates a failing motor, motor parts or the belt has gone bad. If your belt breaks, the blower will stop working completely. Try to nip this one in the bud before the belt breaks to avoid more serious damage.
Hissing: A hissing noise indicates some sort of a leak. It could also mean the compressor pressure is set too high.
If you hear an unusual noise that you’ve never heard before and it doesn’t seem to fit into the above categories, call for service right away.
Why Fast Service is Important
It’s never a good sign to hear noises coming from your HVAC system. It could be a very minor issue that just takes a fresh air filter to fix. It could be something far more serious.
Routine maintenance, inspections and regular cleanings go a long way to extend the life of your HVAC system. However, you never know when one of the many moving parts might come loose or break.
Turn the unit off until an HVAC professional can check things out. It’s better to be safe than sorry when it comes to maintaining one of your home’s biggest investments.
Since 1993, Dale HCS has been providing HVAC clients in the Sonoma County and surrounding areas with reliable, superior service. Contact us for an expert diagnostic inspection and satisfactory resolution of the problem.