Is Your Furnace Malfunctioning? Here’s What You Should Do 

You just woke up in the middle of the night and realized your home’s cold. Isn’t your furnace heating enough? Has it stopped working? Is it not turning on at all? Whatever the case, you’re reading the right article. We’ll show you some signs to let you know if there’s a problem with your furnace and the steps for you to take. Let’s get to it.

How to Know if Your Furnace Is Malfunctioning

A malfunction is not only uncomfortable but also a potential safety risk. So, let’s examine some things for you to look out for.

Irregular Cycling

This includes short cycling of your furnace, where the furnace works on for a short while and turns off. A reason for this is overheating. Overheating stems from a restriction in airflow. 

Overheating occurs when the vents of your furnace are blocked, or your filter is clogged with dust and dirt. Overheating can cause gases like monoxide to seep out, posing health risks for you and your family.

Another reason may be that your thermostat is at the wrong temperature. For example, if your furnace is close to your oven, the thermostat may detect heat readings and go on and off accordingly. But again, this may affect the cycle of your furnace.

Not Producing Heat

Your furnace isn’t producing heat? First, let’s check your filter. Dust and dirt restrict airflow and can cause your filter to clog. The heat exchanger will shut down when your filter is dirty and your furnace can’t heat up. This reduces the efficiency of your furnace.

Won’t Turn On

You’ve tried turning the furnace on, but it just won’t budge. Your circuit breaker could be off. You’d have to check it to ensure that all switches are on. Perhaps, your thermostat may have hit the wrong setting and reset. It’s supposed to be on the heating function. If it isn’t, your furnace won’t turn on.

Unusual Noises

These include banging, whistling, clanking, and humming.   You hear a banging noise when there’s an issue with your ignition and gas builds up in the combustion system. If your filter is blocked and needs cleaning or replacing, you hear a whistling noise. It means something is interfering with airflow.

The fan blades in your furnace can skid off and hit the walls of your furnace. When this happens, you hear a clunking noise. A humming noise means that your fan’s wearing out.

What Should You Do?

Wondering what to do, now that you know the things which may indicate that your furnace is malfunctioning? Do the following.

Conduct a Self Check

Whether it’s unusual noises, or your furnace isn’t producing heat. Whatever the case, we advise a thorough check of your furnace.

First, check your furnace switch. It should be set to “on.” You may unintentionally raise an alarm to report a problem with your furnace, only to realize the problem was with the switch.  Bottomline is, check your furnace switch.

We’ve discussed the effects of a dirty filter on the efficiency of your furnace. Check your filter, and clean it regularly. If possible, replace it. Remember, your thermostat should be set to the “heat” function. We advise that other sources of heat like your oven, shouldn’t be near your furnace.

Contact A Professional

If you’ve tried the self-check steps above, and your furnace’s still chilly, that’s a sign that it needs evaluation and repairs. You should contact WireNut Home Services Furnace Replacement, a trained HVAC service to spot, service, and repair your furnace. Make that call, and you no longer have to deal with cold uncomfortable nights.  

We’ve discussed how you can know if your furnace needs attention, and showed you what to do. Apply these, and bid goodbye to a malfunctioning furnace.

Cover photo by Ilya Shakir from Pexels

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