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OEM Carrier Gas Pressure Switch HK02LB008 for PG8JAA042090AEJA
Carrier

OEM Carrier Gas Pressure Switch HK02LB008 for PG8JAA042090AEJA

SKU: CARRIE-PG8JAA042090AEJA-PRESSURE_SWITCH-HK02LB008 Brand: Carrier
✓ Guaranteed to fit PG8JAA042090AEJA — 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 PG8JAA042090AEJA

This is the factory-specified OEM gas (LP) pressure switch for the Carrier PG8JAA042090AEJA packaged gas unit, covering both OEM part numbers HK02LB008 (Gas Pressure Switch) and HK06WC091 (Pressure Switch). The pressure switch is a critical safety device that monitors the draft inducer's vacuum pressure to confirm the heat exchanger is properly vented before allowing ignition. When this switch fails — or its sensing hose collapses, cracks, or clogs — the control board cannot prove inducer operation, and the furnace will lock out before the ignition sequence begins, resulting in a no-heat call.

  • Specs: Cutout pressure: 6.5" WC | SPST configuration | Suitable for natural gas and LP (propane) applications | Mounts horizontally or vertically | Factory-matched pressure setpoint for the PG8JAA042090AEJA
  • OEM vs Generic: OEM pressure switches are calibrated to exact factory tolerances. Aftermarket switches can drift from their rated W.C. setpoint, causing nuisance lockouts in cold weather or — worse — allowing ignition before proper draft is confirmed. Always use OEM on gas-fired equipment.
  • Install difficulty: 2/5 — Turn off power and gas before beginning. Tools needed: 1/4" nut driver, needle-nose pliers, and a short length of replacement hose (inspect the sensing hose every time). Photograph the existing hose routing before removal. Note: Always inspect and clear the inducer drain port and condensate trap before condemning the pressure switch.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Designed for the Carrier PG8JAA042090AEJA packaged gas unit. This listing covers both OEM part numbers HK02LB008 and HK06WC091 — confirm your existing part number against your unit's wiring diagram or data plate label before ordering. Compatible across Carrier, Bryant, and Payne platforms sharing this pressure specification. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — call or chat now.

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 PG8JAA042090AEJA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PG8JAA042090AEJA. 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 PG8JAA042090AEJA?
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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