Does your HVAC system go boom or screech in the night? If so, it could mean that your HVAC system is in need of professional attention. Regular service calls can diagnose problems before they become emergencies. When you hear any of these unusual noises identified by Angie’s List, call your HVAC professional right away to diagnose the underlying problem.
When your HVAC system starts up, you should hear a smooth humming sound as the fan begins to do its work. If you hear a squealing or screeching noise coming from the components it could be something as simple as a frayed fan belt. Another cause for squealing noises may be that the fan needs to be lubricated. You might think that WD-40 will temporarily solve the problem, but it is far too lightweight for the job. Your HVAC contractor can recommend the correct oil for your home’s system.
Banging and Thumping
These noises usually originate from a part of the blower fan or blower motor that have become loose. The motor mounts can occasionally become loose or the blower may be out of alignment. If you hear loud banging noises from the HVAC system, something has likely broken loose. You should immediately shut down the system and call an HVAC contractor for service as soon as possible.
Thwap, Thwap, Thwap
A thwapping sound may come from debris that is caught in the fan blades or blower assembly. While this is possible for indoor HVAC systems, outdoor AC units are particularly prone to collecting debris. Leaves, acorns, and other materials falling from trees or items dropped into the housing by curious children are common sources of debris inside an AC unit. Your AC repair specialist can quickly diagnose the problem and remove the foreign matter from the unit.
Clickety, Click, Click
As your HVAC system engages or shuts down, a clicking sound is normal operating procedure. Repeated clicking sounds are an indicator of a more serious problem. A relay may be out of whack or an electrical control may be defective.
Rattling Noises in the Compressor
Like banging and thumping noises, rattling coming from the fan in the compressor unit is a sign that something is, unfortunately, loose. Accompanied with noises like squealing can mean that the compressor or the capacitor is beginning to fail.
Diagnosing the Problem
Our heating and air conditioning systems provide a white noise that become the background of our busy lives. From time to time, it’s good to pause and actually listen to the system. Stand next to the furnace as it cycles or go outside and listen to your air conditioning unit while you visually inspect the outer housing. Make a note of any seemingly unusual notes and when they occur in the cycle. Bring your concerns before licensed HVAC contractors, like Buckeye Heating and Cooling, to get the necessary professional attention.
If your HVAC system is making unusual noises, contact Buckeye Heating & Cooling today at (614) 888-4328.