OEM Carrier Pressure Switch with Bracket 1.81" WC for Model PG9MAA036060AEKA

This OEM pressure switch with mounting bracket (part HK06NB124) is the factory-authorized replacement for the Carrier PG9MAA036060AEKA gas furnace. The pressure switch is a normally-open, single-pole single-throw (SPST) safety device that proves the inducer motor is generating sufficient negative draft pressure before the control board advances to ignition. When the diaphragm inside the switch fails or the hose collapses, the furnace locks out before a flame is ever established — often triggering a fault code and leaving the home without heat.

• Specs: 1.81" W.C. (water column) set point | SPST normally open | Includes factory mounting bracket | Honeywell-manufactured (OEM for Carrier/Bryant) | Supersedes HK06NB119, HK06NB120, HK06NB122
• OEM vs Generic: This is the genuine OEM part — factory-calibrated to the exact W.C. rating required by the PG9MAA036060AEKA. Off-brand substitutes can ship with incorrect set-point tolerances, causing nuisance lockouts or, worse, unsafe ignition sequencing.
• Install difficulty: 2/5 — Power down and lock out the furnace before starting. Tools needed: 1/4" and 5/16" nut drivers, flathead screwdriver, needle-nose pliers, and a phone camera to document hose routing. Match the + and − port labels and verify the flow-restrictor orifice is positioned correctly per the original switch before reconnecting hoses.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse — order before 3 PM local time.

Compatibility: Engineered for the Carrier PG9MAA036060AEKA gas furnace. This switch is also used across more than 200 Carrier and Bryant residential furnace models — always confirm the W.C. rating on your unit's data plate or existing switch label before ordering. Our team is available to verify fitment before you buy — contact us with your full model number.