OEM Carrier Combination Gas Valve EF33CW189 for Model LC350TM400567

This is the factory OEM combination gas valve (part number EF33CW189) designed as a direct replacement for the Carrier LC350TM400567 heating system. The gas valve is the critical component that controls the flow of gas from the supply line to the burner assembly. When it fails, your system will typically exhibit a complete loss of heat, repeated ignition lockouts, or a furnace that fires briefly and then shuts down — often with a fault code indicating gas valve or pressure failure. Replacing with the correct OEM part ensures proper inlet/outlet pressure regulation, safe operation, and full compatibility with the existing control board signals.

• Specs: OEM Carrier combination gas valve | Part No. EF33CW189 | 24V coil operation | Factory-calibrated inlet/outlet pressure settings | Includes redundant valve safety design
• OEM vs Generic: OEM valves are factory-tested to exact pressure tolerances and coil resistance specs for the LC350TM400567. Generic or aftermarket gas valves risk improper gas pressure delivery, nuisance lockouts, and may void equipment warranties — we strongly recommend OEM for gas-carrying components.
• Install Difficulty: 4/5 — Gas valve replacement requires shutting off the manual gas supply, depressurizing the line, and verifying gas-tight connections after installation. Tools needed: adjustable wrench, pipe thread sealant (gas-rated), manometer for pressure verification, and a multimeter to confirm 24V coil signal. This repair should be performed by a licensed HVAC technician.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse. Every order includes secure packaging to protect valve body and fittings in transit.

Compatibility: This gas valve is engineered for the Carrier LC350TM400567 heating system. Verify your existing valve's part number and gas type (natural gas or LP) on the unit data plate before ordering. LP conversion kits may be sold separately depending on configuration. Our HVAC parts specialists are available to confirm fitment before you purchase — don't guess on a gas-carrying component.