1. Inspect the Thermostat
First, ensure your thermostat is instructing your heat to ignite.
- Swap out the batteries if the monitor is not displaying anything. If the digital display is jumbled, the thermostat might need to be changed.
- Ensure the switch is set to “heat” rather than “off” or “cool.”
- Make certain the program is showing the correct day and time and is scheduled to “run.” If you’re having a hard time turning off the program, adjust the temperature by using the up/down arrows and holding the “hold” button. This will make the heat to turn on if thermostat scheduling is a problem.
- Turn the temperature setting to 5 degrees hotter than the room temperature.
If your furnace hasn’t kicked on within a couple minutes, make sure it has juice by changing the fan switch from “auto” to “on.” If the fan doesn’t start, your furnace may not have power.
If you use a smart thermostat—for example one made by Nest, Ecobee, Lux, Honeywell or Bosch—troubleshooting will depend on your model. Check the manufacturer’s website for assistance. If you still can’t get your Wi-Fi thermostat to work, calll us at 407-477-6319 for heating and cooling service.
2. Check Breakers and Switches
Next, you will need to verify your breaker and furnace switch are on.
- Find your house’s main electrical panel. If you aren’t sure where it is, search for a metallic metal box in your basement, garage or closet.
- Ensure your hands and feet aren’t moist before opening the panel or breakers.
- Look for the breaker titled “furnace” or “heat,” and double-check it’s turned “on.” If you discover a tripped breaker, it will be in the middle or “off” position.
- Using one hand, quickly turn the breaker to the “on” spot. If the breaker immediately trips and pops back to “off,” don’t try to reset it and get in touch with a professional from Osceola Air, LLC at 407-477-6319 quickly.
No matter your furnace’s age or brand, it has no less than one standard wall switch located on or by it.
- Make sure the lever is facing up in the “on” spot. If it was shut off, expect your furnace to take up to five minutes to ignite. (If you’re unaware of where your furnace is located, check your basement, garage or utility closet. It can also be in a crawl space or attic.)
3. Put in a New Air Filter
When we consider heater issues, a filthy, full air filter is often the top offender.
If your filter is too grungy:
- Your furnace won’t keep heating your home, or it might get too warm from reduced airflow.
- Your energy bills might go up because your furnace is running too often.
- Your heating system may break down prematurely because a dusty filter triggers it to work overtime.
- Your heating system might be disconnected from power if an extremely dirty filter causes the breaker to trip.
While it depends on what model of heating system you use, your air filter will be in the interior of the blower compartment of your heating system, an attached filter case or wall-mounted return air grille.
To swap out your filter:
- Turn off your heating system.
- Pull out the filter and tilt it toward the light. If you can’t notice light through it, get a new one.
- Put in the new filter with the arrow motioning toward the heating system to prevent damage.
Flat filters need to be replaced monthly, while pleated filters should last around three months. You could also use a washable filter that will work for about 10 years. If you have children or pets, you might have to replace your filter more frequently.
To make changing your filter go more quickly down the line, use a permanent pen on your furnace outside or ductwork to list the airflow direction and filter size.
4. Inspect the Condensate Pan
Commonly known as drain pans, condensate pans hold moisture your furnace pulls from the air.
If water is leaking from your furnace or its pan has standing water in it, follow these recommendations.
- If your pan includes a drain (look for a PVC pipe), check that it’s clear. If it should be drained, use a special pan-cleaning tablet you can buy at home improvement or hardware stores.
- If your pan uses a pump, check the float switch. If the switch can’t be moved from the “up” position with standing water in the pan, contact us at 407-477-6319, because you will possibly have to get a new pump.
5. Watch for Heater Error Codes
If faults persist, take a look within your heating system’s plastic window to confirm the blower motor’s status. Dependent on the model, the light may also be attached on the surface of your heating system.
If you notice anything other than a solid, colored light or twinkling green light, call us at 407-477-6319 for HVAC service. Your heater might be emitting an error code that needs pro assistance.
6. Clean the Flame Sensor
If your heating system tries to work but switches off without putting out heat, a dirty flame sensor might be responsible. When this takes place, your heating system will try to start three times before a safety device shuts it down for about an hour.
If you feel confident with removing the panels from your heater, gently scrubbing your flame sensor is something you can do personally. Or, one of our heating service professionals can finish it for you.
If you are confident cleaning the sensor yourself, you need:
- A 1/4” hex screwdriver or wrench
- Bit of light grit sandpaper, steel wool or emery cloth
- A dry, clean paper towel
As the next step:
- Shut off the heating system’s power by using its wall switch or breaker. If you don’t have an electric gas valve, you have to switch off the gas along with it.
- Take off the heater’s front panel and trace the wire to the flame sensor.
- Take off the rod and use your sandpaper, steel wool or emery cloth to gently clean the metal rod.
- Wipe off the rod with a paper towel.
- Remount the sensor.
- Put the furnace doors back on.
- Switch the furnace’s power back on. It could run through a set of examinations before resuming normal heating. If your heating system doesn’t ignite, the sensor may require replacement or something else could be creating an issue. If this occurs, get in touch with us at 407-477-6319 for heating and cooling repair support.
7. Relight the Pilot Light
If you have an outdated heating system, the pilot light could be turned off. To relight it, locate the instructions on a sheet on your heater, or try these recommendations.
- Find the toggle beneath your heating system marked “pilot,” “on” and “off.”
- Turn the switch to the “off” position.
- Don’t do anything for at least five minutes to prevent starting a fire.
- Turn the switch to “pilot.”
- Push the “reset” button as you move the flame of a long lighter to the pilot light opening.
- Release the “reset” switch once the pilot light is burning.
If you have tried the instructions twice and the pilot light still won’t burn or keep burning, call us at 407-477-6319 for furnace service.
Examine Your Energy Supply
Try switching on another gas appliance. If it doesn’t operate, your natural gas source might be turned off, or you may have run out of propane.