Furnace Troubleshooting: Why Isn’t It Turning On?

Posted on: October 30, 2019

With the colder months of the year almost upon us, nobody wants to risk freezing in their home because of a faulty furnace. If you’ve noticed that your furnace isn’t working as well as it used to, it’s only natural that you want to do something about it in preparation for the winter.

But why does a furnace stop working? While there may be a number of reasons why your furnace is malfunctioning, it’s always better to have a professional for furnace repairs Escondido relies on look at your unit and determine the exact issue. The experts at Action AC will tell you if your furnace is dying, and whether you should have your furnace repaired or replaced.

Why would a furnace stop working?

If you suspect problems with your furnace, you should first check for some common issues that you may be able to fix yourself. Here are some of them:

  • Dirty filters. A dirty filter is one of the most common culprits behind furnace malfunctioning. Debris and dirt in the filters can restrict airflow, preventing the furnace from working properly. Make sure to check and change the filters every 3 months.
  • Issues with the thermostat. First, try changing the batteries if your thermostat display isn’t working. Next, check the settings to see if the thermostat is set to heat and to a temperature that’s higher than the room temperature.
  • Your furnace is turned off. This one’s a no-brainer, but make sure to check the power switch of your furnace and see if it’s on. Also, check if your circuit breaker might have tripped.
  • Air ducts. If your furnace is inconsistent in cooling your home, you may have a problem with leaking or badly installed ducts. Take a look at your vents and see if the dampers are fully open and whether any of the ducts are blocked or dirty.

What causes a furnace not to kick on?

In addition to the already mentioned culprits, there is a number of other reasons why your furnace may not be working properly. Read on.

The pilot light is out

Some older furnace models have a pilot light that is gas-lit and can blow out, preventing the furnace from igniting. Check the flame of the pilot light and look for the furnace instructions to see how to relight it if it’s out. If the issue happens again, seek professional help.

Your gas valve is off

Check if the gas valve for the furnace is set to “on” since it may have been shut off as a precaution. If the valve isn’t fully on, your furnace may not be getting sufficient gas supply for the system to work properly.

There is a malfunctioning part

Various components of your furnace can overheat and malfunction, causing your furnace to stop working. If you believe that your furnace has a faulty component, never try to tackle the issue yourself. Instead, reach out to seasoned professionals who will take care of the problem efficiently and expertly.

Peerless experts for furnace repairs Escondido relies on

While dirty filters and a blown pilot light are issues you may be able to tackle yourself, seeking professional help if you notice problems with your furnace is always the safest course of action. Attempting to repair your furnace on your own can be dangerous, both for your health and the functioning of the system in the long run.

Even if you aren’t dealing with a particular issue, having the system serviced and maintained regularly is the best way to ensure a long lifespan of your furnace. With assistance from the skilled professionals at Action AC, your furnace will be in perfect shape for the winter and you won’t have to worry about freezing in your home after you come from the San Diego Zoo Safari Park. Reach out to us today!