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This is the factory OEM combination gas valve for the Carrier PG8MAA048110ABJA gas furnace. The gas valve is the heart of your furnace's heating circuit — it opens on command from the integrated furnace control board to deliver metered natural gas to the burners upon a confirmed call for heat. When this valve fails, the furnace will attempt ignition, the igniter will glow, but no gas will flow — resulting in a lockout fault and a cold home. You may also see fault codes related to flame sense or failed ignition attempts on the control board LED.
Compatibility: Engineered as a direct OEM replacement for the Carrier PG8MAA048110ABJA gas furnace. Always verify your unit's gas type (natural gas), voltage (24V), and inlet/outlet pipe size (1/2" NPT) against your data plate before ordering. Not for use with LP/propane systems without an approved conversion kit. Have a fitment question? Our HVAC parts specialists verify compatibility before you order — contact us before you buy.