1. Look at the Thermostat
To begin, make certain that your thermostat is signaling your furnace to ignite.
- Change the batteries if the screen is blank. If the digital display is scrambled, the thermostat might need to be replaced.
- Make sure the control is set to “heat” instead of “off” or “cool.”
- Make sure the program is showing the right day and time and is scheduled to “run.” If you’re having problems overriding the schedule, adjust the temperature with the up/down arrows and using the “hold” button. This will make the furnace to start if thermostat settings are a problem.
- Turn the temperature setting to 5 degrees hotter than the room temperature.
If your heating hasn’t started within a couple minutes, make sure it has electricity by toggling the fan switch from “auto” to “on.” If the fan doesn’t begin to run, your heater could be without power.
If you use a smart thermostat—such as one manufactured by Nest, Ecobee, Lux, Honeywell or Bosch—troubleshooting will be determined by the model you have. Refer to the manufacturer’s website for support. If you still can’t get your Wi-Fi thermostat to function, contactl us at 318-855-2326 for heating and cooling service.
2. Check Breakers and Switches
Next, you should check if your breaker and furnace switch are on.
- Find your house’s main electrical panel. If you don’t know where it is, look for a silver metal box in your basement, garage or closet.
- Make sure your hands and feet aren’t wet prior to opening the panel or breakers.
- Find the breaker titled “furnace” or “heat,” and make sure it’s switched “on.” If you discover a tripped breaker, it will be in the middle or “off” spot.
- Using one hand, quickly turn the breaker to the “on” spot. If the breaker instantly trips and pops back to “off,” don’t touch it and get in touch with a team member from Central Aire Heating & A/C Inc at 318-855-2326 quickly.
It doesn’t matter how old your furnace is or what brand it is, it has at least one standard wall switch set on or near it.
- Ensure the control is moved up in the “on” position. If it was turned off, it could take your furnace up to five minutes to turn on. (If you’re unsure where your furnace is located, check your basement, garage or utility closet. It could also be in a crawl space or attic.)
3. Get a New Air Filter
When it comes to furnace issues, a dirty, full air filter is often to blame.
If your filter is too dusty:
- Your heater won’t stay on, or it could get too hot from restricted airflow.
- Your utility costs may go up because your heat is operating more often.
- Your furnace may stop working prematurely because a filthy filter triggers it to work overtime.
- Your heating might lose power if an extremely filthy filter causes the breaker to trip.
Depending on what model of heating system you have, your air filter will be inside the blower compartment of your heating system, an attached filter case or wall-mounted return air grille.
To replace your filter:
- Switch off your heater.
- Take out the filter and angle it toward the light. If you can’t see light through it, use a new one.
- Put in the new filter with the arrow facing toward the furnace to prevent damage.
Flat filters ought to be replaced every month, while pleated filters should be used for about three months. You could also buy a washable filter that you can use for about 10 years. If you have children or pets, you might have to change your filter more often.
To make changing your filter smoother in the future, use a permanent marker on your heater housing or ductwork to show the airflow direction and filter size.
4. Check the Condensate Pan
Otherwise known as drain pans, condensate pans catch moisture your furnace draws from the air.
If water is leaking out of your heater or its pan has too much water in it, follow these recommendations.
- If your pan has a drain (look for a PVC pipe), make sure that it’s clear. If it needs to be drained, drop in a special pan-cleaning tablet you can get at home improvement or hardware shops.
- If your pan uses a pump, take a look at the float switch. If the button is stuck “up” with liquid in the pan, reach us at 318-855-2326, because you will likely have to install a new pump.
5. Watch for Furnace Error Codes
If failures keep on happening, take a look inside your furnace’s plastic window to confirm the blower motor’s status. Depending on the type, the light may also be attached on the surface of your heater.
If you see anything other than an uninterrupted, colored light or twinkling green light, call us at 318-855-2326 for HVAC service. Your heating system could be communicating an error code that is calling for pro help.
6. Brush off the Flame Sensor
If your heating system tries to start but shuts off without distributing warmth, a dusty flame sensor might be to blame. When this occurs, your furnace will try to start three times before a safety device shuts it down for around an hour.
If you feel okay with removing the panels from your heater, brushing off your flame sensor is work you have the ability to do yourself. Or, one of our heating service professionals is able to finish it for you.
If you are confident cleaning the sensor on your own, you require:
- A 1/4” hex screwdriver or wrench
- Bit of light grit sandpaper, steel wool or emery cloth
- A fresh paper towel
- Turn off the heater’s power with its wall switch or breaker. If your gas valve isn’t electric, you have to switch off the gas along with it.
- Remove the heater’s front panel and follow the wire to the flame sensor.
- Take off the rod and use your sandpaper, steel wool or emery cloth to gently scrub the metal rod.
- Clean the rod with a paper towel.
- Put the sensor back in.
- Secure the furnace doors.
- Switch the furnace’s power back on. It could go through a series of tests before resuming normal operation. If your heater doesn’t ignite, the sensor could have to be replaced or something else could be creating an issue. If this occurs, call us at 318-855-2326 for heating and cooling repair support.
7. Relight the Pilot Light
If you are using an outdated heater, the pilot light could be extinguished. To relight it, look for the guide on a label on your furnace, or use these steps.
- Locate the lever beneath your furnace labeled “pilot,” “on” and “off.”
- Turn the switch to the “off” position.
- Take a break for at least five minutes to avoid creating a fire.
- Push the dial to “pilot.”
- Press the “reset” button as you move the flame of a long lighter to the pilot light opening.
- Depress the “reset” lever once the pilot light is burning.
If you have tried the list twice and the pilot light still won’t light or remain ignited, call us at 318-855-2326 for furnace service.
Check Your Gas Supply
Try turning on an additional gas appliance. If it doesn’t work, your natural gas source may be turned off, or you might have run out of propane.