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 (part HK06WC058) is a key safety control on your GB1AAV048090AAJA gas furnace that verifies the inducer motor has established proper venting draft before allowing the burners to ignite. A failed switch, or blocked vent that keeps it from closing, causes a hard lockout and a no-heat call — frequently flagged by a pressure-switch fault code on the control board. A switch that's drifted out of calibration causes maddening intermittent shutdowns. This genuine Carrier switch is set to the precise water-column pressure specified for the GB1AAV048090AAJA, so it trips and resets dependably instead of nuisance-tripping like a generic-rated switch. It mounts to the factory bracket and reconnects with the original hose and spade terminals. Installation is easy — power off, detach the two wires and rubber tube, swap the switch, and reconnect. Most homeowners finish in 15 minutes; inspect the hose for cracks or trapped condensate while you're there. Order before 3PM CST and it ships same-day so your heat is restored fast.
This part is compatible with Carrier model GB1AAV048090AAJA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.