From the hallway, a furnace that will not heat looks the same no matter what broke. Inside the cabinet, though, everything happens in a strict order: inducer on, pressure switch closed, igniter glowing, gas valve open, burners lit, flame proven, and finally the blower moving heat through the ducts. Diagnosis is mostly a matter of finding where that chain breaks. In Houma homes, it tends to be the same handful of culprits: a flame sensor coated in oxide, a hot surface igniter cracked by thermal cycling, a pressure switch held open by a tired inducer or a plugged condensate trap, or a control board with a burned relay.
For air conditioning breakdowns, see AC Repair.
Signs You Need Furnace Repair in Houma
Recognizing the warning signs early can save you time and money. Watch for these telltale signs:
- Squealing or grinding from the blower compartment
- Air moving through the vents that never gets warm
- Yellow, wavering burner flames where they should be sharp blue
- Short cycling every few minutes without reaching the setpoint
- Burners light, run a few seconds, then shut down repeatedly
- The furnace clicks and glows but the burners never light
- Water, rust stains, or black soot around the flue or cabinet
- Loud booms at startup caused by delayed ignition
Don't Wait for a Total Failure
Most HVAC failures start small, a weak capacitor, a squealing blower, a system that runs a little longer each week. Don't wait, call (985) 274-8312 and we'll take a look right away.
