We service both gas and electric furnace systems with manufacturer-trained technicians.
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 Gresham, SC carries the tools and common parts specific to furnace repair, so most calls finish in a single visit.

Every furnace visit includes a combustion analysis and carbon monoxide test before any repair recommendation.
We carry manufacturer service manuals for major furnace brands.
Diagnosis happens first, and the quoted flat rate reflects the actual confirmed fault.
We understand a dead furnace in winter is a pipe-freezing risk, not just a comfort issue.
From the first symptom to the final fix, these are the specific furnace repair services our Gresham-area crews are equipped for.
Standing pilot systems get checked for thermocouple failure, the most common cause of a pilot that won't hold. This is one of the most requested furnace repair calls we get across Gresham, SC.
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 Gresham, SC.
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 Gresham, SC.
We test motor amp draw against rated spec before replacement. This is one of the most requested furnace repair calls we get across Gresham, SC.
Blocked or improperly sloped venting can back-draft combustion gases into the home. Techs handling flue & venting repair carry the specific parts and tools this job calls for, not a generic kit.
We test low-voltage circuits before condemning the board. This is one of the most requested furnace repair calls we get across Gresham, SC.

Gas odor reports get immediate safety instructions before dispatch details.
We confirm your Gresham address and a realistic arrival window.
Safety check first — combustion and carbon monoxide — then full mechanical diagnostics.
Heat exchanger findings are documented clearly regardless of outcome.

Furnace kept clicking like it wanted to light and never catching.
Turned out to be a failed gas valve — they caught it with a proper pressure test, not a guess.
Shut the furnace down immediately for safety and walked me through the options.
Thermocouple was the culprit, replaced and tested before the tech left.

A clicking-but-not-lighting pattern is one of the most common furnace complaints we diagnose.
Yes — it's a genuine carbon monoxide risk and we treat it as a safety issue, not a routine repair line.
Could be a delayed ignition fault, a failed gas valve, or a limit switch issue — a full diagnostic narrows it down.
Yes — our technicians are trained and certified on both fuel types.
Immediately — leave the area and call, don't attempt to diagnose it yourself.
No-heat calls during freeze warnings are prioritized across Gresham, SC.

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