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4 Tips on What to Do if Your Furnace Won’t Turn On

4 Tips on What to Do if Your Furnace Won’t Turn On 10 Sep

A furnace is a heating device used to make sure that buildings and houses stay warm. Contemporary furnaces use heating oil, propane, natural gas or electricity to create heat. Furnaces now are safer than their earlier predecessors, and they produce a great amount of heat to reach different rooms in your house.

Furnaces are useful for keeping your home warm during chilly, cold nights and especially during the winter season. A furnace can regulate extremely frigid temperatures. As well, a furnace makes sure that pure air is filtered and circulated all the time so that you do not have to live in a home with stale air.

Some common issues that a furnace might have

  • the furnace is not producing any heat
  • the furnace is producing some heat but not enough heat
  • the furnace is often cycling between on and off
  • the blower does not blow air
  • the furnace blows air non-stop, and lastly
  • the furnace produces a lot of noise
  • the furnace is blowing cold air

When you can identify the common problems your furnace may have, then you can take the proper steps to prevent those problems from happening or deal with those issues when they occur.

Now, if your furnace is not producing any heat, the issue could have to do with the power, thermostat setting, thermostat batteries, the pilot light, or gas. To address a furnace that is not producing any heat, you can start by trying to reset the home circuit breaker. You want to make sure the thermostat is set to heat. After that, you can adjust the dial down or up by a few degrees to see if you can feel an obvious change in temperature. If you cannot feel any changes whatsoever, you might want to examine if the fuse or circuit breaker is blown.

If your furnace is not producing enough heat for your liking, the issue could be clogged filters. It’s worth mentioning that it’s very important to change your filters every 3-4 months, otherwise you increase the chance of your furnace to break very soon. You want to make sure that the air filters are in excellent condition. If you do believe that an air filter is completely clogged or dirty, you have to find the filter, check the filter to see if it smells dirty or dusty and turn off the furnace before replacing the filter.

The cycling on and off of your furnace may also be a sign of a clogged filter, airflow issue or incorrect thermostat setting. Blower issues with your furnace could be related to debris or a problem with the thermostat, the transformer, the blower motor, the furnace control board, the limit control switch or the run capacitor. It is not normal for a furnace to become noisy. The noises may indicate a clogged burner, a mechanical problem, thermal expansion, loose panels, issues with motor bearings or belt issues. That is why, it’s recommended to make a furnace maintenance every year just to check whether there’s any issues.

What to do if your furnace will not even turn on?

It can be frustrating if it gets to the winter season and your furnace won’t even turn on. Since you now know the common furnace issues and how to handle them, let’s look at four things you can do if your furnace won’t turn on.

1. Check your circuit breakers and thermostat

Various components of your furnace run on electricity and need power to run – even if you are using a propane or gas furnace. If your furnace fails to turn on, the circuit breaker could be turned off. You can look to your circuit breaker panel to see if all of the switches are set to on. If the circuit breakers are not the issue, it could be the thermostat. There are some thermostats that would lose their programming and reset if they lost power, even briefly. For this, you can identify if the thermostat has power, make sure the thermostat is on and also, ensure that the thermostat is on the “heating” mode.

2. Check the drain pan and air filter

Drain pans (also known as condensate pans) collect water that has been removed from the air by your furnace or air conditioner. Since furnaces produce condensation, they will probably have a condensation pump and float switch. When everything is working correctly, the water should be pumped or drained out. If the water is not drained out, the float switch will be triggered which could stop your furnace from turning on. To address this, you have to make sure your drain is clear and make sure the float switch is in the down position. Similarly, if your air filter is clogged, a safety feature could be ensuring your furnace does not turn on, so you can replace the air filter to fix this.

3. Check your pilot light and gas, propane or oil supply.

A lot of furnaces will not turn on if the pilot light is out. The pilot light can go out if propane or gas flow to the pilot light is disrupted. The pilot light will need to be relit. Lastly, a lack of fuel could be the culprit for your furnace not turning on. A way for you to check if that is the issue is by trying to use another gas appliance, like your stove. If you notice that your stove is not working, then you can get your propane tank filled.

4. Call an expert

Dealing with furnace issues can be stressful and so, it’s always better to call an expert – a professional HVAC technician – to help you fix any furnace issues. Your safety is important, and a professional HVAC technician can handle any furnace issue without compromising your health and safety. Call Smile HVAC for a furnace repair. Our support team will give you estimates before we come so you will know the approximate price upfront. Our technicians will check your equipment and fix it very fast.