OEM Carrier Combination Gas Valve 24V 3.5" WC Natural Gas 3/4" for Model PG8JVA048090AAJA

This is the genuine OEM combination gas valve (part# EF33CW180) factory-specified for the Carrier PG8JVA048090AAJA packaged gas/electric unit. The gas valve is the heart of your furnace's heating operation — it receives the 24V signal from the control board after the inducer, pressure switch, and igniter have all proven satisfactory, then opens to allow metered natural gas flow to the burners. When this valve fails, your system will enter a no-heat lockout: the igniter may glow, but without gas flow there will be no flame, no flame sensor signal, and the board will lock out after one to three attempts. A defective valve can also cause erratic pressure or delayed ignition — a distinct sign the valve's internal regulators have degraded.

• Specs: 24V coil voltage | 3.5" W.C. hi-fire regulated outlet pressure | 1.5" W.C. low-fire regulated outlet pressure | 3/4" NPT inlet/outlet | Natural gas | Combination (redundant dual-solenoid) design | 4.7 × 4.8 × 2.2" form factor
• OEM vs Generic: OEM Carrier valves carry factory-calibrated outlet pressure regulation, ensuring precise gas-to-air ratios and safe redundant shutoff. Generic valves often have looser pressure tolerances, which can trigger nuisance lockouts or — worse — overfiring that shortens heat exchanger life.
• Install difficulty: 3/5 — Gas work requires care. Shut off the manual gas supply before disconnecting. Tools needed: adjustable wrench, pipe thread sealant (gas-rated), manometer for outlet pressure verification, multimeter to confirm 24V signal at valve terminals. Always leak-test all connections with approved solution after reinstall and verify manifold pressure before closing up.
• Warranty: 1-year OEM manufacturer warranty from date of purchase. Ships same business day from our warehouse when ordered by cutoff.

Compatibility: Engineered for Carrier model PG8JVA048090AAJA packaged gas/electric units. Confirm your unit's gas type (natural gas), inlet connection size (3/4"), and control voltage (24V) on the data plate before ordering. This valve is a direct drop-in replacement — no field modifications required. Questions about fitment? Our HVAC parts specialists verify compatibility before every order. Order today and ship today.