Furnace Repair in Shreveport, LA: How to Handle 9 Routine Problems

HVAC man working on a furnace

When your furnace won’t start, doing your own furnace repair in Shreveport, LA, can appear daunting.

There are several time-saving, reasonable solutions you can take care of by yourself to avoid a furnace repair bill.

If your furnace doesn’t kick on, won’t stay on or won’t light, try the troubleshooting guide below in advance of contacting an HVAC pro.

If you discover you need help from a heating and cooling professional and live in Shreveport, Moon's Air will be able to help you. We can repair most brands of heaters.

CALL NOW 318-215-7938



If it’s time for a new furnace, we also do furnace installation.

While you’re in touch with one of our team members, think about an annual furnace maintenance plan from Moon's Air that might help you avoid repairs down the line. We can let you know how often your heater ought to be inspected by one of our certified professionals.

Use our straightforward guide as follows to start troubleshooting your heater. The majority of these steps don’t have the requirement of mechanical skills to complete your furnace repair.

Furnace Repair Checklist

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1. Examine the Thermostat

To start, ensure your thermostat is signaling your heat to ignite.

Digital Thermostat

  • Swap out the batteries if the display is not displaying anything. If the digital screen is mixed up, the thermostat could need to be replaced.
  • Make certain that the control is on “heat” instead of “off” or “cool.”
  • Make sure the program is showing the correct day and time and is programmed to “run.” If you’re having problems turning off the schedule, regulate the temperature by utilizing the up/down arrows and pressing the “hold” button. This will force the heating to ignite if thermostat programming is causing an issue.
  • Increase the temperature setting to 5 degrees above the room temperature.

If your furnace hasn’t started within a few minutes, make certain that it has electricity by toggling the fan switch from “auto” to “on.” If the fan doesn’t operate, your heating system might not have power.

Smart Thermostat

If you have a smart thermostat—for example one manufactured by Nest, Ecobee, Lux, Honeywell or Bosch—troubleshooting will depend on your model. Check the manufacturer’s website for support. If you aren’t able to get your Wi-Fi thermostat to function, contactl us at 318-215-7938 for heating and cooling service.

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2. Inspect Breakers and Switches

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

  • Look for your house’s main electrical panel. If you have no idea where it is, search for a metallic metal box in your basement, garage or closet.
  • Make sure your hands and feet are dry before using the panel or breakers.
  • Locate the breaker marked “furnace” or “heat,” and make sure it’s switched “on.” If the breaker has tripped, it will be in the middle or “off” spot.
  • With one hand, steadily turn the breaker to the “on” spot. If the breaker trips right away and pops back to “off,” don’t touch it and get in touch with an expert from Moon's Air at 318-215-7938 immediately.

No matter your furnace’s age or brand, it has no less than one regular wall switch placed on or near it.

  • Make certain the switch is flipped up in the “on” position. If it was switched off, expect your furnace to take up to five minutes to start. (If you’re unsure where to find your furnace, check your basement, garage or utility closet. It can also be in a crawl space or attic.)
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3. Buy a New Air Filter

When we consider heater breakdowns, a grungy, full air filter is regularly the top offender.

If your filter is too dusty:

  • Your heat won’t stay on, or it might overheat from restricted airflow.
  • Your energy costs may be higher because your heating system is working more often.
  • Your heater could stop working prematurely due to the fact a filthy filter triggers it to work harder.
  • Your heater may be cut off from power if an overly filthy filter causes the breaker to trip.

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

To swap out your filter:

  • Turn off your furnace.
  • Pull out the filter and angle 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 furnace 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 may also get a washable filter that will last about 10 years. If you have children or pets, you might have to change your filter more often.

To make the procedure easier down the line, use a permanent writing tool on your furnace housing or ductwork to list the airflow direction and filter size.

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4. Examine the Condensate Pan

Also known as drain pans, condensate pans catch liquid your furnace removes from the air.

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

  • If your pan contains a drain (look for a PVC pipe), make sure that it isn’t clogged. If it should be drained, get a special pan-cleaning tablet you can purchase at home improvement or hardware stores.
  • If your pan contains a pump, check the float switch. If the switch is jammed “up” with water in the pan, contact us at 318-215-7938, because you will likely have to get a new pump.
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5. Look for Heater Error Codes

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

If you notice anything other than a steady, colored light or flickering green light, contact us at 318-215-7938 for HVAC service. Your furnace might be giving an error code that needs professional help.

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6. Brush off the Flame Sensor

If your heater makes an effort to start but turns off without putting out heated air, a dusty flame sensor could be to blame. When this occurs, your heater will try to ignite three times before a safety mechanism powers it down for around an hour.

If you feel comfortable with taking the panels off your furnace, gently scrubbing your flame sensor is a job you can do yourself. Or, one of our heating service professionals is able to complete it for you.

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

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

As the next step:

  • Turn off the heating system’s power with its wall switch or breaker. If your gas valve isn’t electric, you will need to switch off the gas in addition.
  • Lift off the heater’s front panel and trace the wire to the flame sensor.
  • Remove the rod and use your sandpaper, steel wool or emery cloth to gently clean the metal rod.
  • Clean the rod with a paper towel.
  • Remount the sensor.
  • Replace the furnace doors.
  • Switch the furnace’s power back on. It may run through a set of examinations before proceeding with regular running. If your heater doesn’t start, the sensor could need to be replaced or something else might be wrong. If this occurs, contact us at 318-215-7938 for heating and cooling repair assistance.
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7. Relight the Pilot Light

If you are using an older furnace, the pilot light could be out. To relight it, look for the instructions on a sticker on your heating system, or follow these recommendations.

  • Locate the switch beneath your heater marked “pilot,” “on” and “off.”
  • Push the switch to the “off” position.
  • Don’t do anything for at least five minutes to limit the possibility for creating a fire.
  • Turn the switch to “pilot.”
  • Hold down the “reset” switch as you move the flame of a long lighter to the pilot light opening.
  • Release the “reset” switch once the pilot light is lit.
  • If you have gone through the list twice and the pilot light still won’t light or keep lit, contact us at 318-215-7938 for furnace service.

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Check Your Gas Supply

Try using another gas appliance. If it doesn’t function, your natural gas service could be switched off, or you might have run out of propane.

We Can Assist With HVAC Repair

Followed our troubleshooting guide but your furnace still refuses to heat?

Call us today at 318-215-7938 or contact us online. We’ll come out and pinpoint the problem.

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