Repair · Scottsdale

Gas Valve Replacement in Scottsdale — November 2025

CompletedNovember 7, 2025

TechnicianGarrett

Service AreaScottsdale

Visit Invoice Total$838.00

Call (602) 613-3489

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Reported by the Homeowner

Master bedroom furnace overheating.

Scottsdale homeowner · November 7, 2025

The Report

What the homeowner told us

Master bedroom furnace overheating.

Findings & Work Performed

What Garrett documented during the visit

Low manifold gas pressure attributed to the furnace gas valve.

Replaced the gas valve and adjusted the sediment trap; set gas supply/manifold pressure to 3.5; verified no gas leaks with leak detection liquid.

The Verification

Verification performed

Ran system for prolonged period to confirm temperature split and static pressure; leak-checked all connections with leak detection liquid; adjusted gas pressure to specification.

— Related Services

How this repair fits into our Phoenix HVAC service

This repair is one example of the Heating Repair work AZ Perfect Comfort performs across Scottsdale, AZ. You can browse every case study we have published for this type of work in the Gas Valve Replacement case studies archive. Homeowners who join our Comfort Club maintenance membership get every eligible repair backed by our Lifetime Repair Guarantee. For larger repairs and replacements, financing options are available for qualifying projects.

— Parts & Work Performed

Exactly what was installed

Item	Description	Qty	Price
	Remove existing gas control valve from furnace. Install new gas control valve, check piping connections for gas leaks, test furnace operation, and adjust gas pressure per manufacturer.	1	$838.00

Total: $838.00

— Photo Documentation

21 photos from this repair

Every step of this repair was documented on-site by Garrett.

Thermostat on interior wall with backlit display reading 75° and control buttons for mode and fan.

Furnace cabinet open showing PVC vent and condensate drain connections, wiring harness visible, with adjacent water heater and shutoff valves.

Hand sprays leak detection solution on a black iron gas pipe union, showing foamy bubbles around the threaded connection.

Technician uses a screwdriver at the furnace gas valve while clear tubing and test probes connect to pressure ports.

Gas line with shutoff valves and a flexible connector attached to a residential water heater.

Diagnostic instrument display shows 0.44 inWC.

HVAC diagnostic instrument photographed during the service visit.

PVC condensate drain and cleanout on the furnace cabinet, with adjacent water heater, plumbing valves, and recirculation pump visible during service.

Open furnace compartment showing inducer motor, wiring harnesses, gas valve, pressure tubing, and a condensate float switch installed on the drain line.

Pressure probe with clear tubing connects to a test port on the air handler cabinet beside multimeter leads.

Gas valve with ON/OFF switch shown inside furnace cabinet, with connected wiring, pressure tubes, and nearby burner manifold.

Furnace cabinet open with PVC condensate drain and vent piping connected, wiring exposed, and nearby water heater piping.

Furnace cabinet open beside PVC vent piping, showing black gas line with sediment trap and clear pressure switch tubing.

Diagnostic instrument display shows -40.6 °F.

Water heater with circulator pump, yellow-handled gas shutoff valve, and flexible gas connector above black gas piping.

Technician applies leak detector solution to the gas shutoff valve and flexible connector at the appliance.

Gas supply connection at furnace with flexible connector, tee fitting, and vertical sediment trap drip leg.

Furnace burner compartment with gas valve, manifold, wiring, inducer assembly, and condensate safety switch visible during inspection.

Gas line with sediment trap and flexible connector beside a PVC vent pipe near the furnace housing.

Air handler with sealed sheet metal plenum; a clear tube enters a test port while a handheld tool rests on the plenum.

Diagnostic instrument display shows -4.22 inWC.

— Frequently Asked

Questions about this repair

What was documented about the furnace?

Low manifold gas pressure attributed to the furnace gas valve.

Does AZ Perfect Comfort service Scottsdale?

Yes. AZ Perfect Comfort services Scottsdale and the greater Phoenix Metro area. Call (602) 613-3489 to schedule.

Are these repairs guaranteed?

AZ Perfect Comfort Diamond Members receive our Lifetime Repair Guarantee — if the same failure returns, the repair is on us. All other repairs are covered by our standard workmanship warranty. Ask your technician about becoming a Diamond Member to unlock the lifetime guarantee.

— Same Problem At Your Home?

Let's get your home feeling "just right" again.

AZ Perfect Comfort has served Scottsdale and greater Phoenix with same-day HVAC diagnostics and repair. Diamond Members get every repair backed by our Lifetime Repair Guarantee.