OEM Carrier Gas Valve Kit EF660015 for Model GB1AAV042091ADJA

This is the factory OEM gas valve kit (part number EF660015) for the Carrier GB1AAV042091ADJA gas furnace. The combination gas valve is the critical component that controls the flow of natural gas or propane to the burner assembly. It receives a 24V signal from the control board and opens on demand during each heating cycle. When the valve fails, the furnace will attempt ignition — the igniter will glow and the inducer will run — but no flame will be established, resulting in a no-heat lockout condition. You may also see error codes indicating gas valve or ignition failure on the control board.

• Specs: OEM combination gas valve | 24V coil voltage | Factory-calibrated pressure regulation | Compatible with natural gas and LP configurations — verify fuel type on data plate before ordering
• OEM vs Generic: This is a genuine OEM Carrier part (EF660015), manufactured to exact factory tolerances for pressure regulation and valve timing. Aftermarket valves may have inconsistent pressure settings, risking burner instability, nuisance lockouts, or unsafe gas delivery.
• Install difficulty: 4/5 — Gas valve replacement involves working with live gas lines and high-voltage components. Shut off gas supply and disconnect power before beginning. Tools needed: adjustable wrench, pipe thread sealant, manometer for outlet pressure verification, multimeter. A licensed HVAC technician is strongly recommended for this repair.
• Warranty: 1-year OEM factory warranty against defects. In-stock units ship same business day when ordered before cutoff.

Compatibility: Designed as a direct OEM replacement for the Carrier GB1AAV042091ADJA gas furnace. Always confirm the part number on your existing valve and cross-reference with your unit's data plate before ordering. Our HVAC parts specialists are available to verify fitment — contact us before you order if you have any questions. Order today and your part ships same business day.