Learning About Commercial HVAC Systems
About Me
Learning About Commercial HVAC Systems

Hello, my name is Jacob. I would like to talk about proper installation and repair of the HVAC system in your commercial building. Full scale HVAC systems for commercial buildings require ongoing maintenance and repairs to keep every floor and room at a comfortable temperature. These temperature control systems also control the air quality in the building by sending the airflow through filter elements. My site will cover all aspects of the upkeep needed for these systems. I will also talk about the benefits of keeping your air quality and temperatures at desirable levels. Thanks for coming to visit my website.

Learning About Commercial HVAC Systems

Make These Easy Checks First If Your Furnace Is Not Working At All

Isaiah Chapman

Most forms of furnace malfunctions only interfere with its efficiency; it's only in a few cases that the furnace stops working completely. Luckily, a furnace that isn't producing any heat hasn't necessarily experienced a catastrophic failure; even a mere wrong setting can produce such a result. For that reason, start with these checks first if your furnace isn't producing any heat:


This is one of the first places you should check because you might think the furnace is malfunctioning while, in reality, it is the thermostat that isn't correctly set. Confirm that the thermostat is set to "heat" and that temperature setting is reasonable. It might even be that the thermostat's batteries are depleted (if you have a programmable thermostat) and they need to be replaced. All these are easy fixes that, once you confirm they are the problem, you can rectify without a technician's input.

Circuit Breaker or Fuse

If the issue isn't with the thermostat, then you should check the circuit breaker or fuse. It may be that an electrical fault or power surge tripped the circuit breaker or blew the switch, in which case resetting the breaker or replacing the fuse should solve the problem. However, do this only once; in case the breaker trips or the fuse blows again, then you are dealing with a fault in the circuit. In that case, hold on any further breaker resets or fuse replacements until the fault has been diagnosed and rectified.

Power Switch

In some cases, the problem may be as simple as a furnace switch that isn't turned on. Look for the switch inside the furnace cabinet or right next to it. The switch might have been accidentally left in its "off" position. If the switch is turned off, simply switching it on should get the furnace operating again.

Blower Panel

It is dangerous for the furnace to run when the blower panel door is open – even slightly open. For this reason, some furnaces are equipped with a safety mechanism that prevents the furnace from running when the blower door is open. Therefore, check if someone accidentally left the door open or if it wasn't closed all the way; if that is the case, then simply closing the blower panel will get your furnace up and running again.

In case the easy checks don't solve the problem, it's time to call a technician for a professional diagnosis and heating installation services.