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. Most of the diagnosis comes down to finding the broken link. In Taunton 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.
Signs You Need Furnace Repair in Taunton
Catching these issues early helps you avoid costly problems. Keep an eye out for the following clues:
- Repeated shutdowns just seconds after the burners light
- Water, rust stains, or black soot around the flue or cabinet
- 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
- The blower runs constantly but the air never warms
- The igniter glows and clicks, yet no flame ever appears
- A bang or boom when the burners ignite late
Don't Wait for a Total Failure
What seems like a minor issue today can take out a compressor or heat exchanger tomorrow. Call (774) 533-7757 at the first sign of trouble.
