Furnace Troubleshooting Tips

Check the Thermostat Settings

• Ensure your thermostat is set to “heat” and the temperature is above the current room level.

• Replace batteries if necessary and verify the thermostat is functioning correctly.

Examine the Circuit Breaker

• If your furnace won’t turn on, inspect the circuit breaker to ensure it’s in the “on” position.

• Reset any tripped breakers and test your furnace to see if it starts.

Inspect the Vents and Ducts

• Make sure all supply and return vents are unobstructed to maintain proper airflow.

• Check for damage or disconnections in ductwork that can affect heating efficiency.

Check for Gas Leaks

• If you smell gas near your furnace, leave the area immediately.

• Contact your gas company or a professional technician, as gas leaks are dangerous and require urgent attention.

Inspect the Air Filter

• A clogged air filter restricts airflow and can cause overheating.

• Replace the filter every 1–3 months to maintain efficiency and improve indoor air quality.

Check the Pilot Light or Ignition System

• Ensure the pilot light is lit or the electronic ignition system is functioning correctly.

• Look for error codes or indicators that may point to a system problem.

Listen for Unusual Noises

• Banging, clanging, or squealing noises may indicate mechanical issues or blower motor problems.

• Unusual sounds should be addressed promptly by a professional technician.

Test the Limit Switch

• The limit switch turns off the burner if the furnace overheats.

• Frequent on/off cycling may indicate a faulty switch that needs professional inspection.

Monitor the Furnace Flame

• The burner flame should be steady and blue.

• A yellow or flickering flame may indicate combustion problems and may require cleaning or adjustment.

Ensure Proper Ventilation

• Make sure the exhaust flue is free of obstructions.

• Proper ventilation prevents carbon monoxide buildup and ensures safe operation.

About Delta1 Air Conditioning Services Inc.

At Delta1 Air Conditioning Services Inc., we are dedicated to providing top-notch heating repair and furnace services in Southwest Florida. Serving Naples, Ft. Myers, Bonita Springs, and Ava Maria, our team of certified technicians is equipped to handle all heating needs, including:

• Furnace installation and replacement

• Routine maintenance and tune-ups

• Troubleshooting and emergency repairs

• Energy-efficient system upgrades

We pride ourselves on our expertise, fast response times, and commitment to keeping your home safe and comfortable year-round.