OEM Carrier Pressure Switch with Bracket (HK06WC090) for Model PG8DAA036095AAJA

This is the genuine OEM replacement pressure switch for the Carrier PG8DAA036095AAJA packaged gas furnace. The pressure switch monitors negative air pressure created by the inducer draft motor to confirm proper venting before allowing the ignition sequence to proceed. When the switch fails or sticks open, the furnace control board interprets the condition as a venting fault and locks out the unit — leaving you with no heat and often a blinking fault code. This bracket-mounted assembly drops in as a factory-spec replacement, restoring the proven safety interlock your furnace depends on.

• Specs: -0.33 in. W.C. (water column) rating | Includes mounting bracket | Single-port diaphragm switch | 24V control circuit compatible | Replaces HK06WC086, HK06WC088, HK06WC076, HK06WC072, HK06WC073, HK06WC074, HK660001
• OEM vs Generic: OEM Carrier pressure switches are calibrated to exact W.C. tolerances at the factory. Off-brand substitutes frequently carry wider tolerances that cause nuisance lockouts in cold weather or, worse, allow operation under unsafe draft conditions — risks that simply aren't worth taking on a gas appliance.
• Install difficulty: 2/5 — Always shut off the furnace disconnect and wait for inducer to stop before working. Tools needed: flat-head and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers. Photograph existing hose and wiring connections before removal. Swap the rubber hose and spade terminals one at a time to avoid mix-ups.
• Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for Carrier PG8DAA036095AAJA packaged gas furnace units. Also crosses to multiple PG8DAA and PG8UAA series models — verify your unit's existing W.C. rating on the data plate or the old switch body before ordering. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you buy — no guesswork, no returns.