A Checklist To Address Heating Issues With A Gas Furnace

Hayes Heating & Cooling |

Seattle heating and air conditioning

At Hayes Heating & Cooling, we understand that ensuring your heating is functioning at all times during the winter can be quite a challenge. However, it doesn’t always have to be the case. While addressing your HVAC needs can be viewed as a stressful or laborious task, with a little preparation, you can handle your furnace’s failings quickly and easily.

As experts in heating and cooling, we’ve created a handy checklist to ensure that your furnace is functioning at optimum levels, with as little stress as possible. Follow our checklist to addressing heating issues with your gas furnace, so that you can get back to the other important things in life.

1. Check Your Power.

All gas furnaces run on a 120-volt power supply: no power = no heat. There can be three power switches for power to your furnace.

a. Power from your main circuit breaker box. Go to your circuit breaker box and flip the breaker marked “Furnace” off and then back on. This resets a tripped breaker.

b. Check the power switch outside the furnace. Typically a white wall switch in a silver metal box attached to the side of the furnace. Turn it off. See if your furnace starts. Turn the switch to the other position to see if it starts.

c. Check the furnace front panels to see that both are on tightly. There is a blower door safety switch that must be closed, or the furnace won’t power up. Sometimes a door panel is loose and will prevent powering up.

You can see a power light through a small window on the front of a door panel on many models to see if you have power to the furnace.

2. Most No Heat calls are due to a plugged filter.

Check your filter to see if it needs changing. Half of our no heat calls are due to a filter that got too dirty and stopped the furnace from running. The furnace filter plugs up with dust and dirt over time and slows down the airflow of warm air to your home. The temperature at the furnace gets hotter and hotter. To prevent a fire, all furnaces have up to four high limit temperature switches inside. If anyone gets too hot, it stops the furnace for your safety.

3. Check Your Thermostat.

Several no heat calls are due to a thermostat that has run low on batteries or is just defective. Check to see if your thermostat has the words “Low Batt” in the display window, indicating that the batteries need to be replaced. On some models, the display will be blank, also indicating low battery power. Try changing the batteries.

Also occasionally the thermostat will be turned off or in a setback mode at a lower temperature. Most thermostats have an OFF position. Try pressing the SYSTEM button from OFF to HEAT.

If none of these remedies help then call us at 206-244-4328 (HEAT) for help. If you get a message, please wait until the end of the message to get the emergency phone number 206-370-0080 and call it 24/7 day or night for immediate help.

If you have any other concerns about heating reach out to the expert heating and air conditioning HVAC company in Seattle, WA - Hayes Heating & Cooling.

As a family owned and operated heating & air conditioning company in Seattle since 1978, we have more than three decades of experience, we have had the opportunity to serve over 24,000 customers throughout the King County area. We understand situations for repairs typically happen at inconvenient times, which is why our staff is available 24/7 for repairs and replacements.

To learn more about our services, please click here. Have a question? We’d love to hear from you. Contact us here.