OEM Carrier Pressure Switch w/ Bracket HK06WC090 for Model PG8DAA036070ACJA

This is the factory OEM replacement pressure switch with mounting bracket for the Carrier PG8DAA036070ACJA gas furnace. The pressure switch monitors negative pressure created by the inducer draft motor and proves that adequate airflow is present before allowing ignition to proceed. When the switch fails or sticks open, the control board will not advance past the inducer-on stage, resulting in a no-heat lockout — often accompanied by a fault code indicating a pressure switch or inducer fault. A failed hose, cracked switch diaphragm, or clogged condensate port can all trigger the same symptom, so always inspect the hose and ports before replacing the switch.

• Specs: -0.33 WC (inches water column) set point | Factory-matched diaphragm rating | Integrated mounting bracket included | OEM part number HK06WC090
• OEM vs Generic: This is a genuine Carrier OEM part — the exact switch specified in the factory service manual for the PG8DAA036070ACJA. OEM switches use precision-calibrated diaphragms; off-brand substitutes frequently trip at incorrect pressures, causing nuisance lockouts or, worse, unsafe operation.
• Install difficulty: 2/5 — Shut off gas and power before beginning. Tools needed: flathead screwdriver, needle-nose pliers, and a short piece of replacement hose if the existing hose shows cracks. Disconnect the hose and two wiring harness connectors, unscrew the bracket, and reverse to install. Always verify the hose is clear before powering on.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered for the Carrier PG8DAA036070ACJA gas furnace. Also replaces legacy part numbers HK06WC088, HK06WC086, HK06WC076, HK06WC072, HK06WC074, HK660001, 326750-751, 310315-751, and 310315-752. Confirm the -0.33 WC rating on your existing switch before ordering. Questions about fit? Our HVAC parts specialists verify compatibility before you buy.