5 Reasons Your Furnace Isn’t Working

Few feelings fill homeowners with dread quite like their furnace not turning on. After all, the furnace is one of the most important parts of the home for safety and comfort. As the house starts to get colder, homeowners may wonder what is wrong and is causing their furnace issues. If you need Fort Collins furnace repair, here are some possible scenarios that could cause your furnace not to work. Although furnaces may seem complicated, many issues can be solved with relatively simple solutions. Of course, if these solutions don’t work, be sure to call an HVAC professional.

Problem: Thermostat Isn’t Set Properly

Solution: Start by checking the thermostat. It could have gotten reset to keep the house at a lower temperature or to turn the system off completely. Check that the system is set to “heat” or “auto” instead of “fan” or “cool.” Simply adjusting the temperature is the easiest and quickest solution to a furnace that isn’t working.

Problem: Filters and Vents Are Dirty

Solution: Replace your air filter and clean the vents and ductwork. Furnace air filters should typically be replaced every three months. If the filter is too dirty, it can be difficult or impossible for air to get through, which can cause the furnace to feel like no warm air is coming out. Similarly, if the vents and ductwork are dirty, little, if any, warm air can make it through the house. Ductwork naturally accumulates dirt, dust, and dander inside the house, just like outside vents collect seasonal debris. Clean outside vents and the heat pump of leaves and debris. In general, vents and ductwork should be cleaned professionally at least once every three years. You should also check that the chimney exhaust flue is clear. Birds and other animals and debris can clog the flue and block the HVAC system from working properly.

Problem: Furnace Doesn’t Have Power

Solution: Check to make sure the furnace’s power switch is in the “on” position. Examine the circuit breaker box. On occasion, the circuit connected with the furnace can trip and cut power to the furnace. This can also happen if the system is working too hard and drawing too much power. Flip the breaker switch for the furnace to see if it restores power to that area of the home.

Problem: Furnace Doesn’t Have a Fuel Source

Solution: A furnace can’t heat the house if it doesn’t have anything to create heat. Check that the pilot light is on or another heat source is working. Pilot lights are typically only on older furnaces but can flicker out and cause the furnace to lose heat. Open the burner cover to see if the flame is still lit. For a gas furnace, check to see if the gas line is turned on. If you have a gas furnace and your water heater is still working, then gas supply isn’t the issue.

Problem: Fan Motor Is Broken

Solution: The fan motor is what pushes air through the furnace and the house. Start by examining the fan motor to see if it is dusty or dirty. Debris and buildup can block airflow and cause the fan motor to work harder, which can cause it to break. A dirty fan motor can be fixed simply by cleaning it. Over time, the fan motor wears down with use. If cleaning it doesn’t work, it likely needs to be replaced by an HVAC technician.

Many furnace issues can be solved with these DIY fixes and checks. If none of these solutions fixes your furnace or you don’t feel comfortable fixing the issues yourself, be sure to contact an HVAC technician. Many of these issues can be prevented with regular furnace maintenance done by an HVAC professional. If your furnace isn’t working, get to work right away to find the issue and a solution so you can feel safe, warm, and comfortable in your home.