OEM Carrier Gas Furnace Pressure Switch for PG9UAA060080AASA

The pressure switch is the safety device that confirms your induced-draft inducer motor is actually moving combustion gases through the heat exchanger and flue before the control board permits the igniter and gas valve to fire. When this switch fails, sticks, or its hose clogs with condensate, the furnace energizes the inducer, fails to prove draft, and locks out. Homeowners typically notice short-cycling, the inducer humming but no burner ignition, repeated no-heat calls on cold mornings, and a flashing status code (often 3 flashes) on the control board LED. This is a normally-open, SPST negative-pressure (air-proving) switch calibrated in inches of water column. Single-stage units in the PG9UAA family typically trip around -0.40 to -0.60 in. w.c., and the OEM part is factory-matched to your furnace's exact vent length and rise design. The set point, hysteresis, and reset pressure are not adjustable in the field. OEM matters here because pressure is a safety function. A generic switch with a looser set point will either nuisance-trip in cold or windy weather, leaving you without heat, or worse, prove draft when venting is actually marginal — allowing the burners to fire into a blocked or restricted flue. The OEM switch holds the calibration the engineers specified. Install difficulty: 2 of 5. Tools: 1/4" and 5/16" nut drivers, needle-nose pliers for the wire terminals, and a manometer or multimeter to verify operation. #1 safety warning: kill power at the breaker before opening the blower compartment, and inspect the rubber hose for cracks or water before reassembling. 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 PG9UAA060080AASA. 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.