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OEM Carrier Dual Pressure Switch Assembly for PG92SAS30040AAAA
Carrier

OEM Carrier Dual Pressure Switch Assembly for PG92SAS30040AAAA

SKU: CARRIE-PG92SAS30040AAAA-PRESSURE_SWITCH-HK06NB012 Brand: Carrier
✓ Guaranteed to fit PG92SAS30040AAAA — or your money back. Terms

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OEM Carrier Dual Pressure Switch Assembly HK06NB012 for Model PG92SAS30040AAAA

This OEM Carrier Dual Pressure Switch Assembly is the factory-specified replacement for the Carrier PG92SAS30040AAAA gas furnace. The pressure switch is a critical safety component that monitors the negative pressure (vacuum) created by the inducer motor during every heating cycle. If the inducer fails to reach proper speed — or if there is a flue blockage, cracked hose, or a failed switch diaphragm — the pressure switch will not close, preventing the furnace from advancing to the ignition stage. Common failure symptoms include the furnace cycling the inducer repeatedly without lighting, a blinking fault code indicating a pressure switch fault, or complete no-heat lockout. This assembly includes both the dual-stage air pressure switch (HK06NB012) and the gas pressure switch (HK02LB008) as factory-matched components.

  • OEM Part Numbers: HK06NB012 (Dual Pressure Switch Assembly) | HK02LB008 (Gas Pressure Switch) | Superseded by HK06MB012
  • OEM vs Generic: OEM switches are calibrated to exact W.C. (inches water column) setpoints required by your furnace's combustion design. Generic substitutes often carry wider tolerances, risking nuisance trips or — more dangerously — failure to trip on a genuine fault condition.
  • Install Difficulty: 3/5 — Requires shutting off gas and power before servicing. Inspect all rubber hose connections and the condensate drain for blockages before replacing the switch. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, manometer (recommended for verification). Always clear any active fault codes after installation.
  • Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Factory-matched for the Carrier PG92SAS30040AAAA 92% AFUE packaged gas furnace. Cross-references to OEM part numbers HK06NB012, HK02LB008, and updated supersession HK06MB012. Verify your unit's data plate and existing switch W.C. rating before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — same-day shipping on all in-stock orders.

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 PG92SAS30040AAAA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PG92SAS30040AAAA. 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 PG92SAS30040AAAA?
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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