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This OEM Carrier pressure switch (HK06NB124) is a critical safety component for your GB1AAV036035AAJA gas furnace, verifying proper draft inducer airflow before allowing ignition. If the switch fails or sticks, the furnace will lock out and refuse to fire, often showing a pressure switch fault code, to prevent unsafe combustion and flue gas buildup. This genuine Carrier switch is calibrated to the exact factory pressure set point for your model, ensuring accurate, dependable safety operation that universal switches cannot guarantee. It is a direct fit for the GB1AAV036035AAJA, with the correct port, bracket, and electrical terminals for a clean swap. Installation is easy and typically takes 15-20 minutes: shut off power, disconnect the hose and wires, swap the switch, and reconnect. Most homeowners can do it with a nut driver. Replacing a faulty pressure switch with the genuine part restores reliable startups and keeps your furnace's safety interlocks intact. In stock and ships same-day when ordered before 3PM CST. Order today.
This part is compatible with Carrier model GB1AAV036035AAJA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.