It suits Murphy’s Law that air conditioning and heating systems don’t seem to break, except in the most extreme weather. If you find yourself needing furnace repair, it can help if you are able to troubleshoot the problems, before the HVAC contractors arrive.

Furnace Produces No Heat

If your furnace isn’t producing heat, there are some things that you should check, before you even call the HVAC contractors for furnace repair. Some possible causes that you can check for yourself include:

  • A problem with the thermostat—either set too low, or not working
  • The control valve is closed
  • The fuse is blown or the breaker is tripped
  • Ignition problems (pilot light, hot surface ignition, or electronic ignition)

You can check for these problems with your air conditioning and heating system by doing the following things:

  • Check that the thermostat is set to heat, and set to an appropriate temperature
  • If you have a dial thermostat, try changing the setting by a few degrees (up or down)
  • In non-digital thermostats, clean the internal contacts
  • Reset or replace a tripped breaker or blown fuse
  • Check the ignition system according to your manual

If none of these actions brings back your heat, then it’s time to call our HVAC contractors for a furnace repair visit.

Furnace Not Producing Enough Heat

If your conventional gas furnace is producing heat, but not enough to heat your home, there are a few different things that you can try before you call for furnace repairs. These include:
• If your furnace air filter is dirty, clean or replace it
• If the gas burners need adjustment, call for assistance from reputable HVAC contractors
• Make sure that there is adequate air flow to the combustion air chamber

If none of these solutions help, call for professional furnace repair.

Furnace is Coming On and Off Too Often

If your furnace is cycling too quickly, follow these troubleshooting steps:
• If the air filter is dirty, clean or replace it
• Troubleshoot for thermostat problems in the heat anticipator
• Blower motor problems—loose belt or needs to be oiled (oil or tighten belt as needed)

If these seem not to solve the problem, or if your blower motor belt seems frayed, then call our HVAC contractors to come in for a furnace repair.

Professional Furnace Repair in Denver

If your air conditioning and heating system fails, you can do those troubleshooting tasks on your own, or call for assistance. If none of these tricks are helping, then call us, and one of our HVAC contractors will be able to help with your furnace repair. We serve Denver, CO and the entire Denver metro area, including Aurora, CO, Morrison, CO, Evergreen, CO, Broomfield, CO, Arvada, CO, Northglenn, CO, and Commerce City, CO.

(Image and excerpt from “Troubleshooting a Gas Furnace—Furnace Repair”)

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