Furnace Repair in Haines City, Florida: How to Fix 9 Routine Issues

HVAC man working on a furnace

When your furnace won’t kick on, doing your own furnace repair in Haines City, Florida, can appear daunting.

There are a couple of time-saving, inexpensive things you can do by yourself to skip a HVAC service call.

If your furnace doesn’t turn on, won’t keep running or won’t fire, try the troubleshooting guide below before getting in touch with an HVAC professional.

If you find you need help from a heating and cooling professional and live in Haines City, Air Commander's Heating & Air Conditioning Co. can help you. We can repair most types of heaters.

CALL NOW 863-216-2923

If you’re ready for a new heater, we also do furnace installation.

While you’re talking with us, consider a regular furnace maintenance plan from Air Commander's Heating & Air Conditioning Co. that could help you avoid breakdowns in the future. We can tell you how frequently your furnace needs to be checked by one of our NATE-certified professionals.

Use our simple checklist as demonstrated to start troubleshooting your HVAC system. The majority of these steps don’t require mechanical abilities.

check thermostat icon

1. Examine the Thermostat

To begin, ensure your thermostat is instructing your heater to start.

Digital Thermostat

  • Change the batteries if the screen is blank. If the digital screen is messed up, the thermostat may need to be swapped out.
  • Make sure the button is switched to “heat” instead of “off” or “cool.”
  • Make sure the program is set to the right day and time and is set to “run.” If you’re having trouble getting out of the schedule, regulate the temperature with the up/down arrows and holding the “hold” button. This will make the heating to start if thermostat settings are an issue.
  • Set the temperature setting to 5 degrees warmer than the room temperature.

If your heater hasn’t kicked on within a few minutes, make certain that it has juice by moving the fan switch from “auto” to “on.” If the fan doesn’t begin to run, your furnace could be without power.

Smart Thermostat

If you utilize a smart thermostat—such as one made by Nest, Ecobee, Lux, Honeywell or Bosch—troubleshooting is very model-specific. Take a look at the manufacturer’s website for help. If you still can’t get your Wi-Fi thermostat to operate, reachl us at 863-216-2923 for heating and cooling service.

breaker icon

2. Inspect Breakers and Switches

Next, you should check if your breaker and furnace switch are on.

  • Locate your house’s main electrical panel. If you don’t know where it is, search for a gray metal box in your basement, garage or closet.
  • Make certain that your hands and feet aren’t moist prior to touching the panel or breakers.
  • Look for the breaker titled “furnace” or “heat,” and make sure it’s reading “on.” If you discover a tripped breaker, it will be in the middle or “off” area.
  • With one hand, quickly turn the breaker to the “on” position. If the breaker immediately trips and pops back to “off,” don’t touch it and call an expert from Air Commander's Heating & Air Conditioning Co. at 863-216-2923 immediately.

It doesn’t matter how old your furnace is or what brand it is, it has at least one ordinary wall switch situated on or near it.

  • Make certain the lever is facing up in the “on” placement. If it was turned off, it could take your furnace up to five minutes to start. (If you’re unsure where to find your furnace, take a look at your basement, garage or utility closet. It could also be in a crawl space or attic.)
air filter icon

3. Buy a New Air Filter

When we consider heater issues, a filthy, full air filter is often the top offender.

If your filter is too dusty:

  • Your heat won’t be able to stay on, or it might overheat from reduced airflow.
  • Your gas costs may increase because your heating system is running more often.
  • Your heating system could break down too soon since a dirty filter triggers it to work harder.
  • Your heating system may be disconnected from power if an extremely filthy filter results in a tripped breaker.

While it depends on what make of furnace you use, your air filter can be found in the interior of the blower compartment of your heater, an attached filter case or wall-mounted return air grille.

To swap out your filter:

  • Switch off your heater.
  • Remove the filter and hold it up to the light. If you can’t view light through it, get a new one.
  • Install the new filter with the arrow facing toward the heater to prevent damage.

Flat filters need to be replaced once a month, while pleated filters should work somewhere in the vicinity of three months. You can also use a washable filter that you can use for about 10 years. If you have children or pets, you could have to change your filter more often.

To make changing your filter smoother down the line, write with a permanent writing tool on your furnace exterior or ductwork to show the airflow direction and filter size.

condensate pan icon

4. Examine the Condensate Pan

Also known as drain pans, condensate pans catch liquid your heating system draws from the air.

If moisture is dripping from your heater or its pan has standing water in it, try these recommendations.

  • If your pan has a drain (look for a PVC pipe), double-check that it isn’t clogged. If it needs to be drained, drop in a special pan-cleaning tablet you can get at home improvement or hardware retailers.
  • If your pan contains a pump, take a look at the float switch. If the switch is jammed “up” with standing water in the pan, contact us at 863-216-2923, because you will probably have to install a new pump.
error codes icon

5. Look for Heating Error Codes

If failures persist, peek at your heater’s plastic window to verify the blower motor’s status. Depending on the model, the light could also be mounted on the exterior of your furnace.

If you see anything else besides a solid, colored light or blinking green light, call us at 863-216-2923 for HVAC service. Your heating system may be emitting an error code that needs specialized assistance.

flame sensor icon

6. Brush off the Flame Sensor

If your heater attempts to run but turns off without distributing heat, a filthy flame sensor can be responsible. When this occurs, your heating system will try to ignite three times before a safety device shuts it down for approximately an hour.

If you feel confident with opening up your heating system, cleaning your flame sensor is something you can do on your own. Or, one of our heating service specialists is able to finish it for you.

If you are confident cleaning the sensor personally, you require:

  • A 1/4” hex screwdriver or wrench
  • Portion of light grit sandpaper, steel wool or emery cloth
  • An unused paper towel


  • Shut off the heater’s power by using its wall switch or breaker. If your furnace’s gas valve isn’t electric, you have to switch off the gas as well.
  • Remove the heating system’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 lightly scrub the metal rod.
  • Clear the rod with a paper towel.
  • Screw the sensor back in.
  • Replace the furnace doors.
  • Turn the furnace’s power back on. It could run through a set of examinations before proceeding with regular operation. If your heating system doesn’t start, the sensor might require replacement or something else might be causing a problem. If this occurs, call us at 863-216-2923 for heating and cooling repair assistance.
pilot light icon

7. Relight the Pilot Light

If you have an aging heater, the pilot light could be extinguished. To light it, locate the steps on a sheet on your furnace, or follow these recommendations.

  • Look for the toggle on the bottom of your heater that says “pilot,” “on” and “off.”
  • Push the switch to the “off” position.
  • Wait at least five minutes to limit the possibility for creating a fire.
  • Move the knob to “pilot.”
  • Press the “reset” switch as you move the flame of a long lighter to the pilot light opening.
  • Let go of the “reset” lever once the pilot light is lit.
  • If you have gone through the list twice and the pilot light still won’t ignite or keep lit, call us at 863-216-2923 for furnace service.

condensate pan icon

Inspect Your Gas Delivery System

Try using a second gas appliance. If it doesn’t work, your natural gas service may be turned off, or you might have run out of propane.

We Can Help with HVAC Repair

Went through our troubleshooting list but your heater still won’t work?

Contact us today at 863-216-2923 or contact us online. We’ll make a call at your house and pinpoint the issue.


Request Service