OEM Carrier Pressure Switch Assembly w/Bracket HK06WC069 for Model PG8MAA048135ADJA

This is the genuine OEM pressure switch assembly with bracket for the Carrier PG8MAA048135ADJA gas furnace. The pressure switch is a critical safety component that monitors negative pressure created by the draft inducer motor. Once the inducer reaches proper speed and airflow is confirmed, the pressure switch closes to allow the ignition sequence to proceed. When this switch fails — or its sensing hose becomes cracked or clogged — the furnace will lock out before the igniter ever fires, leaving you with a cold home and a blinking fault code.

• Specs: Single-stage draft pressure switch | Rated .27" W.C. break / .42" W.C. max make | Includes factory mounting bracket | Direct OEM replacement, no modifications required
• OEM vs Generic: This is a factory-genuine Carrier part (HK06WC069), calibrated to exact W.C. specifications for the PG8MAA048135ADJA. Aftermarket switches often carry wider tolerances that can cause nuisance lockouts or — worse — fail to detect a true blocked flue condition.
• Install difficulty: 2/5 — Turn off gas and power before servicing. Disconnect the sensing hose and two-wire harness connector, unbolt the bracket, and reverse to install. Tools needed: 1/4" nut driver, needle-nose pliers. Always inspect the rubber sensing hose for cracks or blockages before condemning the switch.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered by 3 PM local time.

Compatibility: Factory-specified replacement for Carrier model PG8MAA048135ADJA gas furnace. Verify your existing switch's W.C. rating on the data plate or switch body before ordering — multiple pressure switch ratings may be used across the PG8MAA model family depending on BTU configuration. Questions about fitment? Our HVAC parts specialists confirm compatibility before you order — call or chat now.