Furnace Repair in Saint Petersburg, Florida: How to Handle 9 Regular Troubles

HVAC man working on a furnace

When your heating system won’t start, doing your own furnace repair in Saint Petersburg, Florida, can appear daunting.

There are several quick, inexpensive things you can take care of yourself to skip a heater repair bill.

If your heater refuses to kick on, won’t run consistently or won’t ignite, try the troubleshooting checklist below prior to contacting an HVAC expert.

If you find you need assistance from a heating and cooling professional and live in Saint Petersburg, Hale's Air Conditioning Services Inc can help you. We have the ability to repair most brands of furnaces.

CALL NOW 727-369-6195

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

While you’re chatting with our team, think about a routine furnace maintenance plan from Hale's Air Conditioning Services Inc that may help you avoid problems in the future. Our team can let you know how often your heating system needs to be inspected by one of our NATE-Certified professionals.

Use our straightforward guide as shown to start troubleshooting your heater. Most of these procedures don’t have the requirement of mechanical abilities.

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1. Check the Thermostat

To begin, make sure your thermostat is instructing your heater to start.

Digital Thermostat

  • Swap out the batteries if the screen is blank. If the digital display is messed up, the thermostat could need to be changed.
  • Make certain that the control is on “heat” as opposed to “off” or “cool.”
  • Make certain the program is showing the right day and time and is scheduled to “run.” If you’re having problems turning off the schedule, regulate the temperature with the up/down arrows and holding the “hold” button. This will force the heating to turn on if thermostat scheduling is an issue.
  • Turn the temperature setting to 5 degrees warmer than the temperature of the room.

If your heater hasn’t kicked on within a couple minutes, make certain that it has electricity by moving the fan switch from “auto” to “on.” If the fan doesn’t begin to run, your heater may not have power.

Smart Thermostat

If you have a smart thermostat—such as one designed by Nest, Ecobee, Lux, Honeywell or Bosch—troubleshooting is very model-specific. Take a look at the manufacturer’s website for help. If you’re still unable to get your Wi-Fi thermostat to operate, contactl us at 727-369-6195 for heating and cooling service.

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2. Examine Breakers and Switches

Next, you will need to verify your breaker and furnace switch are on.

  • Look for your home’s main electrical panel. If you aren’t sure where it is, keep an eye out for a metallic metal box in your basement, garage or closet.
  • Make sure your hands and feet aren’t wet prior to touching the panel or breakers.
  • Look for the breaker labeled “furnace” or “heat,” and double-check it’s turned “on.” If you find that the breaker tripped, it will be in the middle or “off” position.
  • Moving one hand, firmly flip the breaker to the “on” spot. If the breaker instantly trips and pops back to “off,” don’t try to reset it and get in touch with a professional from Hale's Air Conditioning Services Inc at 727-369-6195 immediately.

Regardless of your furnace’s age or brand, it has at least one ordinary wall switch installed on or near it.

  • Ensure the lever is flipped up in the “on” position. If it was switched off, expect your furnace to take up to five minutes to ignite. (If you don’t know where your furnace is located, look in your basement, garage or utility closet. It could also be in a crawl space or attic.)
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3. Put in a New Air Filter

When we consider furnace problems, a grungy, blocked air filter is often the top offender.

If your filter is too grungy:

  • Your furnace won’t stay on, or it may get too hot from reduced airflow.
  • Your energy bills may go up because your heat is running more often.
  • Your heater may fail too soon due to the fact a filthy filter causes it to overwork.
  • Your furnace can lose power if an overly filthy filter causes the breaker to trip.

Depending on what type of heater you own, your air filter will be in the interior of the blower compartment of your furnace, an attached filter case or wall-mounted return air grille.

To put in a new filter:

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

Flat filters ought to be replaced once a month, while pleated filters should be used for somewhere in the vicinity of three months. You could also buy a washable filter that will work for about 10 years. If you have children or pets, you may have to put in a new filter sooner.

To make changing your filter go more quickly in the future, use a permanent writing tool on your heating system outside or ductwork to indicate the airflow direction and filter size.

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4. Inspect the Condensate Pan

Also known as drain pans, condensate pans capture water your heating system pulls from the air.

If liquid is seeping from within your furnace or its pan has standing water in it, use these recommendations.

  • If your pan contains a drain (look for a PVC pipe), make sure that it isn’t full. If it needs to be drained, use a special pan-cleaning tablet you can get at home improvement or hardware retailers.
  • If your pan contains a pump, inspect the float switch. If the lever can’t be moved from the “up” position with liquid in the pan, contact us at 727-369-6195, because you will probably have to install a new pump.
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5. Watch for Heater Error Codes

If faults persist, look inside your heater’s plastic window to confirm the blower motor’s status. Depending on the brand, the light may also be fixed on the outside of your heater.

If you note anything except a steady, colored light or blinking green light, contact us at 727-369-6195 for HVAC service. Your heating system could be communicating an error code that requires pro help.

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6. Brush off the Flame Sensor

If your heater makes an effort to start but switches off without distributing warm air, a filthy flame sensor can be responsible. When this occurs, your furnace will try to turn on three times before a safety mechanism powers it down for about an hour.

If you feel okay with opening up your heater, brushing off your flame sensor is something you have the ability to do on your own. Or, one of our heating service experts is able to finish it for you.

If you want to clean the sensor yourself, you should have:

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


  • Shut off the heating system’s power with its wall switch or breaker. If your furnace’s gas valve isn’t electric, you must 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.
  • Clean the rod with a paper towel.
  • Screw the sensor back in.
  • Replace the furnace doors.
  • Restore power to the furnace. It might run through a series of tests before resuming normal heating. If your furnace doesn’t turn on, the sensor could have to be replaced or something else might be creating an issue. If this takes place, get in touch with us at 727-369-6195 for heating and cooling repair assistance.
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7. Reignite the Pilot Light

If you have an older heating system, the pilot light could be extinguished. To relight it, find the directions on a sheet on your heating system, or try these steps.

  • Look for the toggle on the bottom of your furnace marked “pilot,” “on” and “off.”
  • Turn the switch to the “off” position.
  • Don’t do anything for at least five minutes to avoid creating a fire.
  • Move the dial 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” switch once the pilot light is ignited.
  • If you have gone through the list twice and the pilot light still won’t burn or keep lit, contact us at 727-369-6195 for furnace service.

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Double-Check Your Energy Supply

Try switching on another gas appliance. If it doesn’t work, your natural gas service might be switched off, or you may have run out of propane.

We Can Help with HVAC Repair

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

Contact us today at 727-369-6195 or contact us online. We’ll come out and diagnose the trouble.


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