What to do if the furnace stops working?

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There are a number of signs that your furnace isn’t functioning properly. Hiring a professional furnace repair is always the simplest and safest way to set your furnace. However, some of them can be fixed with some elbow grease. Check out these troubleshooting tips to keep your house warm and comfortable.

If none of these tips above solve your problem, you should contact an expert as soon as possible (or type furnace repair near me on google). If you are in Calgary and are looking for an expert, contact us (Prostar Plumbing and Heating) at 403-250-7232.

Six things to check & identify the reason that causes the furnace to stop working

Take a look at the thermostat

Before you assume your furnace isn’t working, make sure it isn’t the thermostat. If your thermostat has a low battery or is incorrectly adjusted, you may not be getting the signal that it’s time to turn on. If the thermostat appears to be properly adjusted, replace the battery to see if the problem is resolved.

Examine the switches, breaker panels, and pilot light

Check the circuit breaker to determine whether you tripped a circuit if it’s not the thermostat. If that’s the case, switch it back on. Check to see if the furnace works by turning it on. Call for service if the breaker trips again otherwise, you might face the system is overburdened. If that doesn’t solve the problem, make sure the furnace switch sets to the “on” position. Make sure your furnace’s pilot light turns on.

Check the Gas Line

Next, inspect your home’s gas line. If the gas line isn’t already set to “open,” turn the lever to do so. It is not a problem if it configures to open.

Check the Vents

Check to see if anything is blocking the air intake and exhaust vents. Even if the furnace is operating properly, it may appear that the house is not being heated. Always check to see if a piece of furniture is obstructing a vent.

Check the Furnace Filters

The furnace filters must always be clean and clear of dirt. If not, they can quickly clog, resulting in a damaged furnace. When warm air cannot pass through clogs, the heat exchanger can rapidly overheat and cause the furnace to shut down. Therefore, at least once a month, clean or replace the furnace filters and inspect them. Before you handle the filters, make sure the furnace and thermostat turn off.

Check to make sure power to the furnace is on

Even gas systems need electricity. Therefore, there’s a power disconnect switch beside the furnace. First, check the fuse/circuit breaker for the stove at the electrical panel to make sure it hasn’t tripped. Next, ensure that the power switch adjacent to the furnace turns on.


If your furnace is not responding to your repairs or if a part needs to replaced, calling a furnace repairman is the safest option. The safest option is to call a furnace repairman. A qualified professional will know what to do if your furnace breaks down. They’ll be able to diagnose the issue and properly repair it, as well as conduct an audit of your HVAC system and provide advice on how to keep your heating and cooling systems running for a long time.

Contact the Prostar Plumbing and Heating professionals today for more information on what to do if your furnace stops working or making an appointment with a repair specialist.

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