OEM Carrier Two-Stage Gas Valve 24V 3.5" W.C. for Model PG96VAT66120DAAA

This OEM two-stage combination gas valve is the factory-specified replacement for the Carrier PG96VAT66120DAAA high-efficiency gas furnace. Originally supplied under Carrier part number EF33CW206 (superseded by EF33CW152) and White-Rodgers part number 36J56-503, this valve serves as the primary gatekeeper for gas flow into the combustion chamber. When energized by the 24V control board signal, it opens in two stages — first-stage low fire and second-stage high fire — allowing the furnace to modulate between heating demands for optimal efficiency. A failed gas valve typically presents as a complete no-heat condition: the inducer runs, the igniter glows, but no gas is released and the furnace locks out after one or more ignition attempts.

• Specs: 24 VAC coil voltage | 3.5" W.C. outlet pressure | 1/2" inlet × 1/2" outlet | Two-stage (low/high fire) operation | Natural gas set from factory | LP conversion capable | Approx. 5" valve body length
• OEM vs Generic: This OEM-grade valve is built to Carrier factory tolerances for gas pressure regulation and coil actuation timing. Off-brand valves can drift in outlet pressure, leading to incomplete combustion, nuisance lockouts, or — in worst cases — unsafe fuel delivery.
• Install difficulty: 3/5 — Gas work requires shutting off supply at the meter and purging the line before removal. Tools needed: adjustable wrench, 5/16" hex driver, manometer for outlet pressure verification, and a combustible gas detector for post-install leak check. Professional installation strongly recommended.
• Warranty: 1-year OEM factory warranty on parts. Ships same business day from our warehouse when ordered before 3PM local time.

Compatibility: Confirmed fit for Carrier PG96VAT66120DAAA 96% AFUE two-stage gas furnace. Also replaces EF33CW206 / EF33CW206A across compatible Carrier, Bryant, and Payne model families. Always verify your unit's gas type (NAT/LP) and inlet pressure spec against the data plate before ordering. Our HVAC parts specialists are available to confirm fitment — call or chat before you order.