Every time your thermostat calls for heat, the furnace works through a fixed checklist. The inducer motor starts and proves draft by closing a pressure switch, the hot surface igniter heats up, the gas valve opens, the burners light, and the flame sensor confirms there is fire. Only after all of that does the blower begin sending warm air into the house. Finding the step that fails is most of the job. Around New Britain, CT, the usual failure points are a flame sensor fouled with oxide, an igniter cracked by years of heating and cooling, a pressure switch that stays open because of a weak inducer or a clogged condensate trap on a high-efficiency unit, and control boards with burned relays. Each one halts the startup, and from the hallway they all look alike.
When the AC quits in summer, see AC Repair.
When to Call for Furnace Repair in New Britain
Spotting the early warning signs lets you act before the problem gets expensive. These are the signals our technicians see most often:
- Loud booms at startup caused by delayed ignition
- A flame that burns soft and yellow rather than steady blue
- The igniter glows and clicks, yet no flame ever appears
- The blower runs constantly but the air never warms
- A furnace that shuts off every few minutes before the house warms up
- Burners light, run a few seconds, then shut down repeatedly
- Soot, rust, or moisture near the furnace cabinet or vent pipe
- Grinding or high-pitched squeals from the blower
Early Action Saves Money
Left unchecked, even a small fault or temperature swing often signals a system working its way toward a breakdown. If you notice any of these signs, call (860) 470-9960 for a prompt inspection.
