The furnace is a critical part of your home's heating system, as it's responsible for heating air before it's distributed throughout the house. If this essential piece of equipment starts making new noises, don't ignore them. Identifying strange sounds proactively allows you to schedule heating repairs to avoid a breakdown. Here are four sounds a furnace may make and what they could mean.

What Furnace Noises Require Heating Repairs?

1. Bang

When your furnace fires up, you might hear a bang, boom, or pop. If your furnace uses oil or gas, this likely means that the burner temperatures aren't high enough to achieve seamless fuel combustion. This creates fuel buildup, resulting in the mini "explosion" you hear when the burner finally does get hot enough and rapidly burns the extra oil or gas. 

2. Clicking

A slight click is normal if it occurs when the furnace is turning on and simply indicates that the ignition is functioning. However, if the furnace clicks repeatedly and can't sustain the blower function, there is likely an issue with the flame sensor. Alternatively, if the furnace clicks and never ignites, you may have a leaky gas valve or loose wiring. 

3. Rattling

If you hear a rattling while the furnace is already running, this is likely due to loose connections in the ductwork connected to the furnace. However, beware if you hear a rattling noise before the furnace's blower comes on. Issues with the heat exchanger are a major cause of carbon monoxide leaks, which are extremely dangerous and potentially fatal.

4. Grinding or Squealing

These noises usually mean that something is wrong with the blower. The blower belt may have come off the tracks or the motor bearings may need oiling or replacing. Trust a professional to do this job. They can remove grime and check for failing or broken parts.

For fast and affordable furnace maintenance and repair in Sheffield Village, OH, trust Luxury Heating & Air Conditioning. These HVAC professionals have been serving the area since 1947. Their dedicated technicians will conduct a thorough inspection of the furnace and conduct heating repairs to restore its functionality. Visit their website for a list of services. For an estimate, call (440) 387-4999.