Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
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This OEM Carrier pressure switch (HK06NB124) is a critical safety control for your GB1AAV036111ACJA gas furnace. It monitors draft and vent flow, verifying the inducer motor has established proper combustion airflow before the ignition sequence begins. If venting is blocked or the inducer fails, the switch opens and prevents the furnace from firing, protecting against dangerous flue gas conditions. Engineered to exact factory specifications, this pressure switch matches the original tubing connection, trip point, and electrical rating for the GB1AAV036111ACJA, ensuring reliable, code-compliant operation. Installation is a moderate DIY job for the experienced homeowner: shut off power and gas, photograph wiring, transfer the hose and terminals, then mount the replacement. Most repairs take under 30 minutes with basic hand tools. A failing pressure switch commonly causes lockouts, short cycling, or a furnace that ignites then shuts down. Replacing it with a genuine OEM part restores dependable heat and avoids guesswork. In stock and ships same-day when ordered before 3PM CST.
This part is compatible with Carrier model GB1AAV036111ACJA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.