Home DIY and Improvement

What to Do When a Furnace Goes Out in Winter



Winter can be especially difficult when the furnace stops working. Not only do you have to find a way to replace it quickly, but the winter temperatures can make the situation much more dire. That’s why it’s important to know exactly what steps to take and how best to protect yourself and your property right away in an emergency furnace outage during cold weather.

In this blog post, we explain detailed tips for getting through such a situation as efficiently and safely as possible so you’ll have peace of mind knowing your home will be warm again soon.

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Check the thermostat to see if it’s turned off or in emergency mode

The first thing to do if your furnace goes out in winter is check the thermostat. It’s a common mistake to accidentally turn off the thermostat by pressing the wrong button, or put it in emergency mode when you think you’re turning on the heat. So make sure this isn’t the case before you take further steps. 

Check your furnace’s filter and other components

Next, check the filter in your furnace. If it’s clogged or dirty, that could be the cause of the problem. Clean or replace the filter as needed. It’s important to replace it with an appropriate filter of the right size and type.

Additionally, you can also check other components like the blower motor, the igniter switch, and the fuel supply line to see if any of them are faulty and check that they are in working order. This can be done by visually inspecting them or using a multimeter to measure voltage. If any of them are faulty, you will need to replace or repair them before continuing. 

Look for a tripped breaker or blown fuse

In some cases, a tripped breaker or blown fuse in the circuit panel may be to blame for your furnace going out. So check the electrical panel and reset any breakers that have been tripped or replace any fuses that are blown.

It’s important to make sure that the furnace is properly wired and connected to an appropriate circuit breaker or fuse. If it’s not, you’ll need to have a qualified electrician look into it before continuing. This is especially important if your home has recently undergone renovations since incorrect wiring can lead to dangerous situations.

Make sure the furnace switch is in the “on” position

Another easy thing to check is the furnace switch. This switch should be in the “on” position for your furnace to function correctly and provide heat. If it’s not turned on, simply flip it over and see if that solves the problem.

If the switch is in the “on” position and the furnace isn’t functioning, you may need to check that all of its electrical connections are tight. If any of the connections appear loose, you’ll need to tighten them.

Call a technician if you still can’t get the furnace to turn on

If none of the above steps solves your furnace problem, then it’s time to call a technician. Make sure you hire a professional HVAC company with plenty of experience in dealing with emergency situations like these.

A professional will be able to diagnose and repair any underlying issue that may be causing your furnace to go out while also ensuring that all safety protocols are followed and that your furnace is operating as efficiently as possible. 

When you’re ready to call a technician, make sure you have all the information about your furnace handy. This includes the model and serial number, any notes from your previous inspections, and what type of fuel it uses (if applicable). 

Additionally, keep an eye out for any special deals or discounts that may be offered by HVAC companies, as this could help you save money on any repairs.

When the technician arrives, they will usually start by checking the furnace to ensure that all of its parts are in working order and that it is properly wired into your home’s electrical system. They may also inspect for carbon monoxide leaks or other safety issues, and make sure that all connections are tight and secure. Once they’ve completed their inspection, they will diagnose the problem and recommend any necessary repairs or replacements to get your furnace working again.

Bundle up and try to stay warm until help arrives

While waiting for a technician to arrive, try to bundle up and stay warm. Wear plenty of layers and wrap yourself in blankets or sweaters if you have them. Close any doors leading to the outside and caulk around windows or gaps to keep cold air from entering the home.

Additionally, you can also use space heaters or fireplaces to provide some warmth. Just make sure you use these properly and safely, as overuse can cause fires.

Consider calling family or friends for aid in getting the furnace working again. They may have a good recommendation for an experienced technician that can solve the issue quickly and reliably. 


When a furnace goes out in winter, it can be an incredibly stressful and dangerous situation. That’s why it’s important to take the necessary steps to address the problem quickly. 

By following the tips outlined above, you’ll get your furnace up and running again soon—ensuring a safe and comfortable home for everyone inside!

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