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OEM Carrier Pressure Switch w/ Bracket .33 WC — PG8UAA024045AAJA
Carrier

OEM Carrier Pressure Switch w/ Bracket .33 WC — PG8UAA024045AAJA

SKU: CARRIE-PG8UAA024045AAJA-PRESSURE_SWITCH-HK06WC090 Brand: Carrier
✓ Guaranteed to fit PG8UAA024045AAJA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Pressure Switch w/ Bracket .33 WC for Model PG8UAA024045AAJA (HK06WC090)

This is the factory OEM replacement pressure switch with bracket for the Carrier PG8UAA024045AAJA gas furnace. The pressure switch monitors the negative pressure (draft) created by the inducer motor to confirm that the flue is drawing properly before allowing the ignition sequence to proceed. If this switch fails or sticks open, the furnace control board will lock out the heating cycle — often before you ever hear a spark or see a glow. Common symptoms include a furnace that begins the inducer start but never advances to ignition, a blinking fault code for "pressure switch open," or a unit that attempts ignition and immediately shuts down.

  • Specs: .33" W.C. (inches water column) rated | Includes factory mounting bracket | Single-port design | 24V control circuit compatible | OEM part number HK06WC090
  • OEM vs Generic: This is a genuine Carrier OEM part — factory-calibrated to exactly .33" W.C. trip point. Generic aftermarket switches often carry ±10–15% tolerance, which can cause nuisance lockouts or, worse, allow ignition under unsafe draft conditions. OEM is the only safe choice for a gas appliance.
  • Install difficulty: 2/5 — Disconnect power and gas before servicing. Tools needed: 1/4" nut driver, flathead screwdriver, needle-nose pliers. Remove the hose from the inducer port, unplug the 2-wire harness, unmount the old bracket, and reverse to install. Always verify hose for cracks or blockage before condemning the switch.
  • Warranty: 1-year OEM manufacturer warranty from date of purchase. In-stock orders ship same business day when placed by 5 PM local time.

Compatibility: Engineered for Carrier model PG8UAA024045AAJA gas furnace. Also supersedes legacy part numbers HK06WC088, HK06WC086, HK660001, HK06WC076, HK06WC072, HK06WC073, and HK06WC074 — making this a wide-coverage OEM replacement. Verify the .33" W.C. rating on your existing switch before ordering. Questions about fitment? Our HVAC parts specialists confirm compatibility before your order ships.

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 $99
  • 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 info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Pressure Switch fit my Carrier OEM Carrier Pressure Switch w/ Bracket .33 WC — PG8UAA024045AAJA?
Yes. This is the factory-specified OEM pressure switch for the Carrier OEM Carrier Pressure Switch w/ Bracket .33 WC — PG8UAA024045AAJA. 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 OEM Carrier Pressure Switch w/ Bracket .33 WC — PG8UAA024045AAJA?
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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Mike Rivera
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