OEM Carrier Gas Valve EF33CW201 for Model LC348TM401844

This is the factory OEM combination gas valve (part number EF33CW201) engineered specifically for the Carrier LC348TM401844 furnace. The gas valve is the critical component that regulates the flow of natural gas or propane from the supply line to the burner assembly. When it fails, the furnace will attempt ignition but produce no flame, resulting in a hard lockout condition — leaving your home without heat. Common symptoms include repeated ignition attempts with no burner response, error codes indicating gas valve failure, or a furnace that runs the inducer and igniter cycle but never fires.

• Specs: OEM combination gas valve | Part No. EF33CW201 | 24V coil control voltage | Factory-matched inlet/outlet port sizing and pressure rating for Carrier LC348TM401844
• OEM vs Generic: OEM gas valves are manufactured to exact factory pressure tolerances and safety certifications. Generic valves can suffer from inconsistent pressure regulation, increasing the risk of delayed ignition, nuisance lockouts, and potential safety hazards — always choose OEM for gas-carrying components.
• Install difficulty: 4/5 — Gas valve replacement requires shutting off the manual gas supply, relieving line pressure, and leak-testing all fittings after installation. Recommended tools: adjustable wrench, pipe thread sealant, manometer, and an approved gas leak detection solution. This repair is best performed by a licensed HVAC technician.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our stocked warehouse.

Compatibility: This gas valve is the OEM-specified replacement for the Carrier LC348TM401844 furnace. Verify your existing valve's part number and gas type (natural gas or LP) on the unit's data plate before ordering. Our HVAC parts specialists are available to confirm fitment prior to purchase — ensuring you get the right part the first time. In stock and ready to ship today.