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. Most of the diagnosis comes down to finding the broken link. In Parkersburg 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.
Warning Signs for Furnace Repair
The sooner you notice these red flags, the easier and cheaper the fix. Watch for these telltale signs:
- The blower runs constantly but the air never warms
- The igniter glows and clicks, yet no flame ever appears
- Water, rust stains, or black soot around the flue or cabinet
- Flames that start, last a few seconds, and go out again and again
- Booming or banging at light-off from delayed ignition
- A flame that burns soft and yellow rather than steady blue
- Squealing or grinding from the blower compartment
- Frequent on-off cycling that never reaches the thermostat setting
Early Action Saves Money
What seems like a minor issue today can take out a compressor or heat exchanger tomorrow. Don't wait, call (304) 200-1839 and we'll take a look right away.
