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OEM Carrier Pressure Switch HK06WC078 for Model GB1AAV048091ACJA
Carrier

OEM Carrier Pressure Switch HK06WC078 for Model GB1AAV048091ACJA

SKU: carrier-pressure-switch-gb1aav048091acja Brand: Carrier
$39.95

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Carrier Pressure Switch HK06WC078 for Model GB1AAV048091ACJA

This OEM Carrier pressure switch (HK06WC078) safeguards your GB1AAV048091ACJA gas furnace by verifying proper draft inducer airflow before allowing the burners to ignite. It prevents the furnace from firing when venting is blocked or the inducer is weak, protecting against dangerous flue gas spillage. If your furnace short-cycles, locks out after a few seconds, or reports a pressure-switch fault code, a stuck or failed switch is a leading cause. This direct-fit replacement matches the factory trip point and connections for the GB1AAV048091ACJA, restoring safe, reliable operation. Installation is a moderate DIY repair: disconnect power, photograph the wiring, transfer the rubber hose and spade terminals, and mount the new switch in the same orientation. Most jobs take under 30 minutes with simple hand tools. Genuine OEM ensures the correct pressure calibration that aftermarket parts often miss. In stock and ships same-day on orders before 3PM CST, getting your heat safely back online without delay.

Compatibility

This part is compatible with Carrier model GB1AAV048091ACJA.

Shipping

Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $75
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Pressure Switch fit my Carrier Model GB1AAV048091ACJA?
Yes. This is the factory-specified OEM pressure switch for the Carrier Model GB1AAV048091ACJA. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the pressure switch on my Carrier Model GB1AAV048091ACJA?
Difficulty: Medium (20–30 min)
Step 1: Turn off power. Step 2: Locate pressure switch near draft inducer. Step 3: Note tubing orientation. Step 4: Disconnect tubing and wires. Step 5: Remove screw, install new switch. Step 6: Reconnect tubing and wires, restore power.
My furnace shows a pressure switch error. What do I replace?
Furnace LED showing pressure switch error = switch not detecting draft inducer airflow. Try first: clear the rubber tubing to the switch (often clogged with condensation). If problem persists, replace the pressure switch.
Is this pressure switch compatible with Bryant or Payne too?
Many Carrier parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Carrier pressure switch?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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