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 Wenatchee 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.
When the AC quits in summer, see AC Repair.
When to Call for Furnace Repair in Wenatchee
Catching these issues early helps you avoid costly problems. Here are the most common indicators that it's time to call a professional:
- Burners light, run a few seconds, then shut down repeatedly
- Booming or banging at light-off from delayed ignition
- Squeals, scrapes, or grinding noises behind the blower door
- Rust streaks, soot, or water around the cabinet or flue
- The furnace clicks and glows but the burners never light
- A flame that burns soft and yellow rather than steady blue
- Frequent on-off cycling that never reaches the thermostat setting
- Air moving through the vents that never gets warm
Act Before It Gets Worse
Most HVAC failures start small, a weak capacitor, a squealing blower, a system that runs a little longer each week. Call (425) 969-3346 at the first sign of trouble.
