OEM Carrier Pressure Switch for PG8UAA060155ABJA Gas Furnace

The pressure switch is the safety device that proves your Carrier PG8UAA060155ABJA furnace is venting properly before the burners ever light. When the inducer motor starts, it pulls a vacuum on the switch; only when that vacuum closes the contacts does the control board allow ignition. If the switch fails or senses a blocked flue, the furnace simply won't fire — protecting your home from carbon monoxide. Common symptoms include the inducer running continuously while the burners never ignite, short-cycling, or a control board flashing a pressure-switch fault code (often a steady or 3-flash code on Carrier boards). This is a normally-open negative-pressure switch with a factory trip point matched to this furnace's venting. The set point is printed on the switch body in inches of water column ("W.C.) — using the wrong rating defeats the safety logic. You can verify operation with a multimeter on continuity: open at rest, closed once the inducer pulls vacuum. OEM matters here more than almost any other part. The switch's calibrated diaphragm and exact "W.C. trip point are a safety calibration, not a guess. Generic switches frequently ship with wider tolerances or the wrong set point, which either nuisance-trips a healthy furnace or — worse — closes when venting is actually restricted, allowing combustion in an unsafe condition. The genuine Carrier switch holds the rated calibration. Install difficulty: 2 of 5. Tools: 1/4" nut driver and a multimeter. #1 safety warning: kill power at the furnace breaker before servicing, and inspect the rubber hose for cracks, moisture, or blockage — a clogged port mimics a bad switch and must be cleared, never bypassed. Ships same business day from our stocked warehouse on orders placed before 3 PM CST. Backed by a 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PG8UAA060155ABJA. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.