Nothing is worse than waking up to a freezing house in Pflugerville. When your heating system betrays you, it is often due to a few common culprits. Before you panic, let's explore why your system is circulating cold air and how TM Air Conditioning & Heating Services can help restore your comfort.
Why is My Furnace Blowing Cold Air? Top 4 Causes and Solutions
Incorrect Thermostat Settings
It might sound simple, but your thermostat is often the primary suspect. If your fan is set to "ON" instead of "AUTO," the fan runs continuously, even when the furnace isn't heating. This circulates room-temperature air that feels cold. Always ensure your system is set to "AUTO" for efficient cycling.
Clogged or Dirty Air Filters
A filthy air filter restricts necessary airflow, causing the heat exchanger to overheat. When this happens, safety limit switches trip, shutting down the burners while the blower keeps pushing air. Changing your filter regularly is the easiest maintenance task to prevent this frustration and keep your system running smoothly all winter.
Pilot Light or Ignition Failure
Older furnaces rely on a pilot light, while modern units use electronic ignition. If the pilot is out or the ignition fails, your furnace cannot produce heat, yet the fan might still blow cold air. This often requires professional attention from a qualified Pflugerville HVAC contractor to safely diagnose and repair.
Leaky Ductwork and Insulation
Even if your furnace produces heat, tears in your ductwork can suck in cold air from your attic or crawlspace. This dilutes the warm air before it reaches your vents. Professional duct inspection ensures that the heat you pay for actually reaches your living rooms, saving money on monthly energy bills.
Don't let a malfunctioning furnace leave your family in the cold this season. If these troubleshooting tips don't resolve the issue, you need a trusted expert. Contact TM Air Conditioning & Heating Services today for a comprehensive inspection. We are your premier Pflugerville heating and cooling solution for reliable winter comfort.