3 Visible Signs Of Impending Furnace Failure

23 November 2019
 Categories: , Blog


A faulty furnace can leave you without the ability to heat your home. Repairs that go unmade can lead to serious damage that might compromise the integrity of your furnace system as a whole. If you are able to recognize some of the tell-tale signs of impending furnace failure early, you may be able to save your furnace with repairs rather than having to invest in a brand-new system.

Be vigilant in watching for these visible signs of potential furnace failure throughout the coming winter so that you can schedule repair work immediately.

1. Scale

One of the most easily recognized visible signs of furnace failure is the presence of scale. Scale is a term used to describe flakes of rust that have fallen onto the burner inside your furnace. These flakes can accumulate over time, reducing the efficiency of the burner and making it harder for your furnace to heat your home.

You can usually detect scale by watching for flakes of rust on the floor of your furnace housing. An experienced HVAC technician can remove the burners and clean the scale off to prevent furnace failure in the near future.

2. Yellow Flame

Many furnaces have a pilot light. This light can be used as a valuable diagnostic tool when it comes to evaluating the condition of your home's heating system. When a furnace is working properly, the pilot light flame will burn a bluish color. If you look at your pilot light and the flame appears yellow, you could have a burner problem on your hands.

Burners that are allowed to operate while they are soiled with dirt, debris, or scale can easily put the performance of your entire heating system at risk. You will need to have an HVAC technician come to your home and give the burners a thorough cleaning if you spot a yellow pilot light when inspecting your furnace this winter.

3. Rising Energy Costs

Although not directly tied to your furnace, your heating bill can be a visible indicator of the performance of your furnace. A furnace that is on the brink of failure will not be able to operate as efficiently as it once did. This loss in efficiency will become apparent when you compare your energy bills over time.

Unexplained increases in energy costs should always be taken seriously. Have an HVAC technician complete a thorough inspection to determine if a failing furnace is to blame for your rising energy costs. To learn more, contact your local furnace repair service today. 


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