OEM Carrier Two-Stage Gas Valve EF33CW206 for Model PG95XAT48100CAAA

This OEM two-stage combination gas valve is the factory-specified replacement for the Carrier PG95XAT48100CAAA high-efficiency gas furnace. Manufactured by White-Rodgers (cross-reference: 36J56-503), this valve is the critical component that meters and regulates the flow of natural gas from the supply line into the furnace burner assembly. On a two-stage furnace, it opens to a low-fire first stage for efficient steady-state heating, then ramps to full high-fire second stage on demand. When it fails, the furnace will either produce no heat at all, lock out after ignition attempts with no flame establishment, or operate only on one stage — leaving you cold when you need heat most.

• Specs: Two-stage combination gas valve | 24 VAC coil voltage | 3.5" W.C. outlet pressure (natural gas) | 1/2" NPT inlet × 1/2" NPT outlet | ~5" valve body length | Convertible natural gas / propane with LP kit
• OEM vs Generic: This OEM valve is built to Carrier factory tolerances for gas pressure regulation. Off-brand valves often exhibit inconsistent outlet pressure, triggering nuisance lockouts or unsafe over-firing — especially in a 95% AFUE furnace where combustion precision is critical to efficiency and CO safety.
• Install difficulty: 4/5 — Gas valve replacement is a licensed-technician job in most jurisdictions. Tools needed: pipe wrenches, gas leak detector solution or electronic sniffer, manometer for outlet pressure verification, 1/4" nut driver for wire harness terminals. Always shut off the gas supply at the manual shutoff and confirm with a leak check before restoring power.
• Warranty: 1-year OEM factory warranty on new part. Ships same business day from our warehouse — order by 3 PM local time.

Compatibility: Directly fits Carrier model PG95XAT48100CAAA 95% AFUE two-stage packaged gas furnace. Also replaces OEM part EF33CW206A and White-Rodgers cross-reference 36J56-503. Note: EF33CW206 has been superseded — we supply the current OEM-approved equivalent. Verify your unit's data plate gas type (NAT or LP) before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy.