OEM Carrier Gas Valve EF680015 for Model YAC1840YAC501K

This OEM combination gas valve is the factory-specified replacement for the Carrier YAC1840YAC501K packaged unit. The gas valve is the critical component that controls the flow of gas to the burners — receiving a 24V signal from the control board, opening the valve, and delivering metered gas for ignition. When it fails, the most common symptoms are no heat, a system that locks out after repeated ignition attempts, or a unit that will not fire despite a functioning igniter and flame sensor.

• Specs: OEM Part Number EF680015 | Combination gas valve | 24V coil voltage | Factory-matched flow rate and pressure regulation for Carrier YAC1840YAC501K
• OEM vs Generic: This is a genuine OEM Carrier gas valve manufactured to exact factory tolerances. Generic valves may not match the inlet/outlet pressure ratings or coil voltage specifications, risking unsafe operation, nuisance lockouts, or voided equipment warranties.
• Install difficulty: 4/5 — Gas valve replacement involves working with live gas lines and should be performed by a licensed HVAC technician. Tools needed: manifold gauge set, pipe wrenches, leak-detection solution, multimeter. Always shut off gas supply and power before beginning. Test for leaks after installation.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed and factory-matched for Carrier model YAC1840YAC501K. Always verify OEM part number EF680015 against your unit's data plate and existing valve before ordering. Our fitment team is available to confirm compatibility before you buy — ships same day when ordered before 3PM EST.