Top 5 Signs Your Furnace Might Fail This Winter

Winter in the Twin Cities metro can be brutal, and the last thing you want is a furnace breakdown. Knowing the warning signs can help you prevent a cold-weather crisis and save you from a costly, unexpected repair.

So, what are the leading signs that your furnace might be going out? Let’s review.

1. Strange Noises

Is your furnace making clanking, rattling, or squealing or other weird noises? While some noises are normal, a sudden change in sound can indicate a serious problem with internal components like the blower motor or belts. Don’t ignore these sounds; they’re often a cry for help from your system.

2. A Sudden Spike in Your Energy Bill

A furnace that’s working inefficiently has to run longer to heat your home, which drives up your energy costs. If your heating bills are suddenly much higher than last winter, it could be a sign that your system is struggling.

3. Uneven Heating or Cold Spots

Are certain rooms in your home always cold, no matter how high you turn up the thermostat? Uneven heating can be a sign of a failing furnace, or it could point to issues with your ductwork or blower. This is a key indicator that your system isn’t distributing heat properly.

4. The Burner Flame Is Yellow, Not Blue

When your furnace is running correctly, the burner flame should be a steady, bright blue color. If you see a yellow or flickering flame, it could signal a problem with the gas combustion, potentially creating carbon monoxide. This is a serious safety concern, and you should call a professional immediately.

5. It’s Just Not Keeping You Warm

This may seem obvious, but if your furnace is struggling to keep your home at a comfortable temperature, it’s a clear sign of a problem. Whether it’s blowing lukewarm air or cycling on and off too frequently, it’s not doing its job.

What’s next? Don’t wait for your heat to go out completely. Schedule a professional inspection with a Sedgwick Heating expert. We can diagnose the problem and provide a transparent solution before a small issue becomes a full-blown emergency. Our licensed technicians are ready to ensure your furnace is ready for the Minnesota cold.