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OEM Carrier Pressure Switch w/ Bracket .33 WC for PG8UAA036045ACJA
Carrier

OEM Carrier Pressure Switch w/ Bracket .33 WC for PG8UAA036045ACJA

SKU: CARRIE-PG8UAA036045ACJA-PRESSURE_SWITCH-HK06WC090 Brand: Carrier
✓ Guaranteed to fit PG8UAA036045ACJA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Pressure Switch w/ Bracket HK06WC090 for Model PG8UAA036045ACJA

This is the genuine OEM replacement pressure switch for the Carrier PG8UAA036045ACJA packaged gas furnace. The pressure switch monitors negative pressure created by the draft inducer motor to verify safe venting conditions before allowing the ignition sequence to proceed. When this switch fails or sticks open, the control board cannot confirm proper inducer operation and the furnace will lock out — typically displaying a fault code — before the burners ever fire, leaving you with no heat.

  • Specs: Rated at -.33 inches W.C. (water column) | Single-pole, normally open | Includes factory mounting bracket | OEM part number HK06WC090 | Supersedes HK06WC088, HK06WC086, HK06WC076, HK06WC072, HK06WC073, HK06WC074, HK660001, 310315-751, 310315-752, 326750-751
  • OEM vs Generic: This is a genuine Carrier OEM part, factory-calibrated to the exact -.33 W.C. set point. Aftermarket pressure switches often deviate in trip point accuracy, risking nuisance lockouts or — more dangerously — failing to detect a blocked flue. OEM is always the correct choice for a safety-critical component.
  • Install Difficulty: 2/5 — Shut off power and gas before beginning. Disconnect the rubber hose from the inducer port and unplug the two wiring harness terminals. Remove the old bracket screws, mount the new switch with the included bracket, and reconnect hose and wiring. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver. Verify hose integrity before reassembly — a cracked hose is a common cause of pressure switch faults.
  • Warranty: 1-year OEM manufacturer warranty. In stock and ships the same business day from our warehouse.

Compatibility: Direct OEM fit for Carrier PG8UAA036045ACJA packaged gas furnace. Also supersedes multiple legacy Carrier, Bryant, and Payne pressure switch part numbers — verify the -.33 W.C. rating stamped on your original switch before ordering. Not sure it fits? Our HVAC parts specialists verify compatibility before every order — contact us and we'll confirm.

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 PG8UAA036045ACJA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PG8UAA036045ACJA. 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 PG8UAA036045ACJA?
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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