OEM Carrier Gas Valve EF33CW204 for Model PG9UAA042060AASA

This OEM combination gas valve is the factory-specified replacement for the Carrier PG9UAA042060AASA packaged gas/electric unit. The gas valve is the critical component that controls the flow of natural gas or propane to the burner assembly. When it fails, the furnace or heating section will attempt ignition — the igniter will glow and the inducer will run — but no gas will flow, resulting in a lockout fault and no heat. In some cases a faulty valve may also cause erratic ignition, delayed burner light-off, or a hard-to-ignite condition.

• Specs: OEM Part Number EF33CW204 | Combination gas valve | Factory-matched inlet/outlet connections | Compatible with natural gas and LP (check unit data plate for fuel type configuration)
• OEM vs Generic: This is the exact factory-supplied valve engineered to Carrier's pressure and flow specifications for the PG9UAA042060AASA. Generic or aftermarket valves may not meet the precise outlet pressure required, risking unsafe combustion, nuisance lockouts, or voided equipment warranty.
• Install difficulty: 4/5 — Gas valve replacement involves shutting off the gas supply, depressurizing the line, and carefully transferring wiring harness connections. Tools needed: adjustable wrench, pipe-thread sealant, manometer (for outlet pressure verification), and multimeter. We strongly recommend a licensed HVAC technician perform this repair. Always leak-test all connections with an approved gas leak detector solution after installation.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier model PG9UAA042060AASA packaged gas/electric units. Always verify your existing valve's part number against EF33CW204 and confirm fuel type (natural gas vs. LP) on the unit's data plate before ordering. Our parts specialists are available to confirm fitment prior to purchase — we want to make sure you get the right part the first time.