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What To Do If Your Heater Is Not Working

Jan 24, 2023

Is your hot air furnace not working? Let us help you!

We have put together a DIY checklist that could help you troubleshoot your furnace all by yourself! 


Before we begin, confirm the type of HVAC system you have. House heaters can be divided into multiple categories: electric heat/heat-pump, furnaces powered by gas or propane, hot water boilers. As you might expect, electric heaters use electricity to generate heat while furnaces utilize heat generated from burning gas. Boilers heat up water and spread that heat around the house through pipes. The United States is moving toward electric heat as a general trend; however, as of right now, the vast majority of homes are heated by gas-burning furnaces. This is important because different kinds of systems require different troubleshooting steps.

1) Check service/emergency switch 


If you have a basement, it is usually located at the top of stairs. You would not believe how many people accidentally turn this switch off. 

2) Check thermostat 


Make sure your thermostat is set to heat and set temperature is above room. Also check battery


3) Check your air filter 


As time passes and debris builds up, it may be harder for your unit to work as efficiently as it did when you first got it. If this is the case then it is time to change it. The filter is usually located near the furnace, or on the wall/ceiling in the living space, normally a big register. Pro Tip: Make sure the filter is installed correctly when replacing it. The majority of filters have an arrow that indicates which way air should flow. If your filter is behind a metal ceiling vent, that arrow should point upward, or toward the heater if it is next to the actual unit. 


4) Check breakers 


Make sure that the breaker is flipped towards on 



5) Confirm you have gas in your house


A quick way to check if you have gas is to turn on your stove (if gas stove is present) or any other gas operated appliance. 


6) Check furnace led for error code 


If all of the above is good we can then move to the furnace and check for error codes. Most furnaces have a small led light that should be visible through a window. If this led is flashing it is probably an error code. The code for your specific error can be found either in the owner's manual or on the inside part of the door for your furnace. (PRO TIP: Make sure to take note of how often the light flashes because once you open the door the error code will be erased.)  


If all of this checks out and you are still having problems with your heating system, give us a call for further instruction or to schedule an appointment for technical assistance. 201-787-5657 or at air2cool1@gmail.com 


By 7056524981 16 Mar, 2023
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