OEM Carrier Gas Valve Assembly for PG9MAB024040AASA Gas Furnace

The redundant gas valve is the heart of the heating cycle on your PG9MAB024040AASA — it meters and shuts off the flow of natural or LP gas to the burners on command from the furnace control board. Because it carries two valve seats in series, a single failure leaves the furnace unable to light. When the valve weakens or sticks you'll typically notice the furnace short-cycling, igniting late with a 'whoomp,' failing to light at all, or locking out after three or four trial-for-ignition attempts while the blower keeps pushing cold air. A faint gas smell at startup or a buzzing, chattering solenoid are also classic end-of-life symptoms. Specs: This is a 24VAC redundant combination gas valve with an integral pressure regulator. It is configured for natural gas out of the box (LP conversion kit sold separately), with a typical manifold pressure of 3.5" W.C. on natural gas and a maximum inlet pressure around 1/2 PSI (14" W.C.). Single-stage operation matches the PG9MAB cabinet. OEM vs. Generic: Gas valves are a life-safety component, and this is the one part where OEM is non-negotiable. The genuine Carrier-spec valve is matched to your furnace's regulator setting and trial-for-ignition timing; aftermarket valves often ship with looser regulator calibration and slower solenoid response, which can cause delayed ignition, flame rollout, or sooting. The redundant safety seat is also independently certified — something many generics cannot document. Installation difficulty: 4 of 5. Tools: 1/4" and 5/16" nut drivers, two adjustable wrenches, gas-rated pipe-thread sealant, and a manometer to verify manifold pressure after install. #1 safety warning: SHUT OFF the gas at the manual shutoff and kill power at the breaker before disconnecting anything, then leak-check every joint with soap solution before relighting. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PG9MAB024040AASA. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.