Every furnace call starts with a combustion and carbon monoxide safety check, not just a symptom fix.
Flat-rate pricing quoted after diagnosis, no pressure toward a premature system replacement.
If you're dealing with a pilot light that won't stay lit, an ignitor that clicks but never catches, or a furnace that runs but blows cold air, you already know furnace failures carry a safety dimension — carbon monoxide and gas leaks — that most other HVAC repairs don't, so the diagnostic has to start there.

Most furnace repair problems give some warning before they turn into a pilot light that won't stay lit, an ignitor that clicks but never catches, or a furnace that runs but blows cold air — catching it early usually means a shorter, cheaper fix.
AAA Pro HVAC built its furnace repair process around one idea: diagnose first, quote honestly, fix it right.
Every truck across Jefferson, NH carries the tools and common parts specific to furnace repair, so most calls finish in a single visit.

Cracked heat exchangers get flagged immediately as a safety issue, not just a repair line item.
Our crews are trained on standing pilot, hot surface ignition, and electric resistance furnace systems alike.
No push toward replacement when a repair genuinely solves the problem.
We understand a dead furnace in winter is a pipe-freezing risk, not just a comfort issue.
Every job starts with a real diagnosis, not a guess — here's the full scope of what our furnace repair technicians handle across Jefferson, NH.
Hot surface ignitors crack over time and simply stop glowing — we test resistance rather than replacing on assumption. This is one of the most requested furnace repair calls we get across Jefferson, NH.
Faulty gas valves are treated as a safety-critical repair, prioritized accordingly. This is one of the most requested furnace repair calls we get across Jefferson, NH.
A cracked heat exchanger is a carbon monoxide risk and gets flagged immediately with the furnace shut down if needed. This is one of the most requested furnace repair calls we get across Jefferson, NH.
A furnace that runs but never blows warm air often traces to a blower motor or limit switch fault. This is one of the most requested furnace repair calls we get across Jefferson, NH.
Blocked or improperly sloped venting can back-draft combustion gases into the home. This is one of the most requested furnace repair calls we get across Jefferson, NH.
We test low-voltage circuits before condemning the board. This is one of the most requested furnace repair calls we get across Jefferson, NH.

Tell us the symptom — no ignition, cold air, gas smell, or error code — and we route accordingly.
We confirm your Jefferson address and a realistic arrival window.
Flat-rate quote follows the confirmed fault, before repair begins.
Most ignition and control repairs finish same-visit.

Furnace kept clicking like it wanted to light and never catching.
Old furnace was blowing cold air even though the blower ran fine.
Shut the furnace down immediately for safety and walked me through the options.
Thermocouple was the culprit, replaced and tested before the tech left.

Usually a failing ignitor or a fouled flame sensor — both are testable with the right equipment rather than replaced blind.
Yes — it's a genuine carbon monoxide risk and we treat it as a safety issue, not a routine repair line.
This symptom shouldn't be ignored since it sometimes points to a safety-related fault.
Electric resistance furnaces fail differently than gas units, and we diagnose accordingly.
Immediately — leave the area and call, don't attempt to diagnose it yourself.
Call dispatch for a live arrival estimate based on current demand.

Whether you're in the heart of Jefferson or one of the surrounding communities, dispatch routes the closest available technician.
☎ Call +1-866-805-8548 for Jefferson Service