OEM Carrier Gas Valve Kit EF660015 for Model GB3AAV048115ADJA

This is the factory OEM replacement gas valve kit (part number EF660015) for the Carrier GB3AAV048115ADJA gas furnace. The combination gas valve is the heart of your furnace's fuel delivery system — it regulates incoming gas pressure, controls the flow to the burners on a call for heat, and shuts off gas immediately when the control board or safety circuit commands it. When the valve fails, you'll typically experience a complete no-heat condition, a furnace that locks out after one or two ignition attempts, or an error code indicating a gas valve fault on your control board. A faulty valve may also cause delayed ignition, sooting, or an abnormal flame appearance.

• Specs: OEM combination gas valve | Factory-rated inlet/outlet pressure | 24V coil actuation | Compatible with natural gas configurations as equipped on the GB3AAV048115ADJA — verify gas type and manifold pressure settings on your unit's data plate before ordering
• OEM vs Generic: This is a genuine Carrier OEM part (EF660015), manufactured to exact factory pressure tolerances and safety certifications. Generic or aftermarket gas valves can vary in cracking pressure and valve seat sealing, creating combustion inconsistencies and potential safety hazards — always use OEM on gas-carrying components.
• Install difficulty: 4/5 — Gas valve replacement must comply with local codes and is recommended for licensed HVAC technicians. Tools required: adjustable wrench, pipe thread sealant (gas-rated), manometer for manifold pressure verification, leak-detection solution, and a multimeter to confirm 24V coil signal. Always shut off the manual gas supply and disconnect power before beginning.
• Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed and factory-specified for the Carrier GB3AAV048115ADJA 4-ton, 115,000 BTU gas furnace. Always cross-reference OEM part number EF660015 and confirm gas type (natural gas or LP) against your unit's rating plate before installation. Need help verifying fitment? Our HVAC parts specialists confirm compatibility before you order — no guesswork.