OEM Carrier Gas Valve 24V 3/4" Natural Gas for Model PG8MVA036070AAJA

This OEM combination gas valve (part #EF33CW180) is the factory-specified replacement for the Carrier PG8MVA036070AAJA gas furnace. The gas valve is the heart of your furnace's fuel delivery system — it opens on command from the control board to allow natural gas flow to the burners, then closes immediately when the call for heat ends or a safety fault is detected. When this valve fails, the furnace will attempt ignition but produce no flame, triggering a lockout fault code. You may also experience intermittent heating, a furnace that lights briefly then shuts down, or a unit that simply produces no heat at all.

• Specs: 24V coil voltage | 3/4" NPT inlet connection | Natural gas | Hi-fire regulated at 3.5" W.C. | Low-fire regulated at 1.5" W.C. | Combination redundant valve design for safety compliance
• OEM vs Generic: This is a genuine Carrier OEM part built to exact factory tolerances. Aftermarket gas valves frequently have inconsistent pressure regulation, risking unsafe gas delivery, burner rollout, or nuisance lockouts — particularly in two-stage furnaces like the PG8MVA036070AAJA that depend on precise hi/low-fire switching.
• Install difficulty: 3/5 — Gas valve replacement requires shutting off the gas supply, relieving line pressure, and careful reconnection of all wiring and gas lines. Tools needed: adjustable wrench, pipe thread sealant (gas-rated), multimeter, manometer for outlet pressure verification. A licensed HVAC technician and local gas inspection may be required by code. Always verify inlet and outlet pressures after installation.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM fit for Carrier model PG8MVA036070AAJA. Verify your existing valve's inlet size, coil voltage, and gas type (natural gas) against your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy — order with confidence.