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A-Avis Home Services Plumbing, Heating & Air Conditioning, Inc. Blog

Why Is Low Air Flow a Problem with Your Furnace?

We live in Riverside, CA, which means that most homes in our area rely on forced-air furnaces to stay warm when things get cold. Forced-air furnaces generate heated air, then push them through the same system of ducts that our air conditioner uses. The system is simple and effective and allows for quality heating without detracting from the air conditioning that we require most months of the year. But like any system, they run into problems from time to time, and one of them – low air flow – can actually be far more serious than it looks. Why is low air flow a problem with your furnace? Read on for the answers.

Causes of Low Air Flow

Low air flow in your furnace is usually caused by one of two basic conditions. Either something is blocking the air from moving forward (a clog or breach in the ducts, for example), or there isn’t enough power to push it through the ducts (a faulty fan motor, a bent fan blade or a loose electrical connection preventing them from operating at full speed). Regardless of the cause, it keeps most of the hot air sitting in your furnace and moving through your ducts at a very sluggish pace.

Why That’s a Problem

In the first place, low air flow means that your heater will struggle to warm your home as effectively as it could with a higher air flow. It will spend more energy – raising your monthly heating rates – and place additional strain on other components. Even worse, because the hot air is just sitting in your furnace, it could cause other components to overheat. The furnace will usually shut down before that happens, but it still leaves you with the need to fix the problem before your system will function as normal.

The pros at Avis Plumbing, Heating and Air can fix low air flow in your heater.

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