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 sending heat through the house. Diagnosis is mostly a matter of finding where that chain breaks. In Peoria 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.
Cooling trouble instead? See AC Repair.
When to Call for Furnace Repair in Peoria
The sooner you notice these red flags, the easier and cheaper the fix. Watch for these telltale signs:
- Yellow, wavering burner flames where they should be sharp blue
- Clicking and a glowing igniter with no burner flame
- The blower runs constantly but the air never warms
- Squealing or grinding from the blower compartment
- A bang or boom when the burners ignite late
- Soot, rust, or moisture near the furnace cabinet or vent pipe
- Frequent on-off cycling that never reaches the thermostat setting
- Repeated shutdowns just seconds after the burners light
Act Before It Gets Worse
A failing capacitor, clogged condensate drain, or dirty flame sensor rarely fixes itself and usually gets more expensive to address the longer it runs. Don't wait, call (309) 290-9269 and we'll take a look right away.
