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OEM Carrier Dual Pressure Switch Assembly for PG95XAT66120DBAA
Carrier

OEM Carrier Dual Pressure Switch Assembly for PG95XAT66120DBAA

SKU: CARRIE-PG95XAT66120DBAA-PRESSURE_SWITCH-HK06NB021 Brand: Carrier
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Texas CMBL #19328542014
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OEM Carrier Dual Pressure Switch Assembly HK06NB021 for Model PG95XAT66120DBAA

This OEM dual pressure switch assembly is the factory-specified replacement part for the Carrier PG95XAT66120DBAA 95% AFUE, two-stage gas furnace. The pressure switch monitors negative air pressure created by the inducer motor to confirm proper combustion airflow before the control board allows ignition to proceed. When either switch fails — due to a ruptured diaphragm, clogged port, or faulty hose connection — the furnace will lock out on a pressure switch fault code before the ignition sequence can begin, leaving you with no heat. Replacing it with the correct OEM part (HK06NB021) restores the precise trip-point calibration the factory control board expects.

  • Specs: Dual pressure switch assembly | OEM Part No. HK06NB021 | Factory-calibrated trip points for high-efficiency induced-draft operation | Designed for two-stage, 120,000 BTU input configuration
  • OEM vs Generic: OEM pressure switches are calibrated to exact water-column (W.C.) specifications for the PG95XAT66120DBAA. Generic aftermarket switches frequently carry wider tolerances, risking nuisance lockouts or — more dangerously — failure to detect a true blocked-flue condition.
  • Install Difficulty: 2/5 — Straightforward swap with basic hand tools. Recommended tools: 1/4" nut driver, flathead screwdriver, and a manometer to verify W.C. trip point post-installation. Always confirm inducer hose condition and condensate drain are clear before replacing the switch.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PG95XAT66120DBAA packaged gas furnace. Always cross-reference the part number on your existing switch and the unit data plate before ordering. Our fitment team is available to confirm compatibility — contact us before you buy if you have any questions.

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 PG95XAT66120DBAA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PG95XAT66120DBAA. 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 PG95XAT66120DBAA?
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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