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OEM Carrier Gas Pressure Switch HK02LB008 for PG8MAA066135AFJA
Carrier

OEM Carrier Gas Pressure Switch HK02LB008 for PG8MAA066135AFJA

SKU: CARRIE-PG8MAA066135AFJA-PRESSURE_SWITCH-HK02LB008 Brand: Carrier
✓ Guaranteed to fit PG8MAA066135AFJA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier Gas Pressure Switch HK02LB008 / HK06WC091 for Model PG8MAA066135AFJA

This OEM gas pressure switch is the factory-specified replacement for the Carrier PG8MAA066135AFJA packaged gas furnace. The pressure switch is a critical safety component that monitors the negative pressure (vacuum) created by the draft inducer motor. If the inducer fails to establish proper airflow, the switch remains open and locks out the ignition sequence — protecting the heat exchanger and preventing unsafe flue gas conditions. When this switch fails, the furnace will typically begin the startup sequence, the inducer will spin up, but the unit will lock out before the gas valve opens and the burners ignite.

  • OEM Part Numbers: HK02LB008 (Gas Pressure Switch, LP-rated, 6.5" W.C. cutout) | HK06WC091 (SPST Pressure Switch, High Fire) — both are factory-authorized Carrier parts covered by this listing
  • OEM vs Generic: OEM pressure switches are calibrated to exact W.C. (water column) setpoints at the factory. Off-spec generic switches can trip too early or too late, causing nuisance lockouts or — worse — unsafe operation. Always match the W.C. rating stamped on the original switch body before ordering.
  • Install Difficulty: 2/5 — Power down and lock out the unit before servicing. Tools needed: 1/4" nut driver, flat-head screwdriver, 5/16" nut driver, and a digital manometer to verify inducer vacuum after installation. Always inspect the pressure switch hose for cracks or blockages before condemning the switch itself — a clogged hose is a common misdiagnosis.
  • Warranty & Shipping: 1-year OEM factory warranty. In stock — ships same business day from our warehouse. Fits Carrier, Bryant, and Payne units sharing this platform.

Compatibility: Engineered for the Carrier PG8MAA066135AFJA packaged gas furnace. Also fits select Bryant and Payne models using OEM part numbers HK02LB008 or HK06WC091. Verify the W.C. rating and part number on your existing switch before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — no guesswork, no return hassle.

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 PG8MAA066135AFJA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PG8MAA066135AFJA. 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 PG8MAA066135AFJA?
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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