furnace repair

Des Moines is Getting Cold, but My Furnace Wont Turn On

Figuring out a furnace-related problem might feel like an intimidating chore when your heat won’t start. But it doesn’t have to be like that.

There are a few time-saving, inexpensive fixes you can do on your own to skip a furnace repair call.

If your furnace won’t turn on, won’t stay on or won’t ignite, try the troubleshooting list below before calling an HVAC professional.

If you find you need help from someone who is experienced and live in Des Moines, Kohles & Bach Heating & Cooling can help you. We work on most brands of heating systems.

If you’re ready for a new heating system, we also do furnace replacement in Des Moines.

While you’re talking with us, consider an annual furnace maintenance plan from Kohles & Bach Heating & Cooling that may help you avoid repairs in the future. We can tell you how regularly your furnace should be inspected by one of our HVAC experts.

Follow our easy guide below to get started on troubleshooting your furnace. Most of these steps don’t require mechanical abilities.

Check the Thermostat

To begin, make sure your thermostat is signaling your furnace to start.

If you have a digital thermostat:

  • Change the batteries if the screen is blank. If the digital screen is jumbled, the thermostat may need to be replaced.
  • Make sure the switch is set to “heat” as opposed to “off” or “cool.”
  • Ensure the program is showing the appropriate day and time and is set to “run.” If you’re having trouble overriding the program, set the temperature by using the up/down arrows and press the “hold” button. This will cause the furnace to start if thermostat programming is causing an issue.
  • Increase the temperature setting to 5 degrees warmer than the room temperature.
Digital Thermostat

If your furnace hasn’t turned on within several minutes, make sure it has power by toggling the fan switch from “auto” to “on.” If the fan doesn’t run, your furnace may not have power.

If you have a smart thermostat—like one made by Nest, Ecobee, Lux, Honeywell or Bosch—troubleshooting is very model-specific. Refer to the manufacturer’s website for help. If you still can’t get your Wi-Fi thermostat to work, contact us for assistance.

Lennox Smart Thermostat

Replace Your Furnace’s Air Filter

When it comes to furnace breakdowns, a filthy, clogged air filter is regularly the top offender.

If your filter is too dirty:

  • Your furnace won’t keep heating your home, or it could overheat from restricted airflow.
  • Your energy bills could increase because your furnace is turning on more than it should.
  • Your furnace could break down sooner than it should because a dirty filter causes it to overwork.
  • Your furnace can be cut off from power if an overly dirty filter causes the breaker to trip.

Depending on what make of furnace you use, your air filter can be found inside the blower compartment of your furnace, an attached filter case or wall-mounted return air grille.

Replacing a furnace filter

To replace your filter:

  • Turn off your furnace.
  • Take out the filter and tilt it toward the light. If you can’t see light through it, replace it.
  • Install the new filter with the arrow pointing toward the furnace to avoid damage.

Flat filters should be replaced every month, while pleated filters should last about three months. You can also buy a washable filter that will last about 10 years. If you have children or pets, you may have to replace your filter more frequently.

To make the process easier in the future, use a permanent marker on your furnace housing or ductwork to indicate the airflow direction and filter size.

Kohles & Bach Heating & Cooling Can Help with Furnace Problems

Followed our troubleshooting guide but your furnace still won’t work?

Call us today at 515-207-6569 or use our online scheduler. We’ll come out and figure out the problem.

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