Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier Pressure Switch w/ Bracket -1.65
Carrier

OEM Carrier Pressure Switch w/ Bracket -1.65" WC for PG9MAB048080AASA

SKU: CARRIE-PG9MAB048080AASA-PRESSURE_SWITCH-HK06NB124 Brand: Carrier
✓ Guaranteed to fit PG9MAB048080AASA — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Pressure Switch with Bracket HK06NB124 for Model PG9MAB048080AASA

This OEM pressure switch with mounting bracket (part #HK06NB124) is the factory-specified replacement for the Carrier PG9MAB048080AASA gas furnace. The pressure switch monitors negative pressure generated by the inducer motor during each heating cycle. When the inducer achieves proper draft, the switch closes and signals the control board to advance to ignition. A failed or stuck-open pressure switch causes the furnace to lock out before ignition — commonly displayed as a fault code — leaving you with no heat. Replacing it with the correct OEM part restores precise pressure sensing and safe furnace operation.

  • Specs: SPST (Single-Pole, Single-Throw) | Set Point: -1.65" W.C. | 1/4" barb port connection | Includes factory mounting bracket | Manufactured by Honeywell for Carrier
  • OEM vs Generic: This is a genuine OEM Carrier part engineered to exact factory tolerances. Generic aftermarket switches often carry wider set-point tolerances (±0.10" W.C. or more), which can cause nuisance lockouts or — more dangerously — allow furnace operation under unsafe draft conditions.
  • Install difficulty: 2/5 — Power down the furnace at the disconnect and thermostat before starting. Tools needed: #2 Phillips screwdriver, 1/4" nut driver, needle-nose pliers. Photograph all tubing connections and wiring spade terminals before removal. Note: HK06NB124 supersedes HK06NB119, HK06NB120, and HK06NB122 — port orientation may differ from older units, so verify hose routing matches the labeled (+) and (-) ports on the new switch.
  • Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Direct OEM replacement for Carrier model PG9MAB048080AASA gas furnace. This switch is also the current superseding part for over 200 Carrier and Bryant residential furnaces previously using HK06NB119, HK06NB120, and HK06NB122. Always verify the W.C. rating on your existing switch's data label before ordering. Have fitment questions? Our HVAC parts specialists confirm compatibility before you buy — and we ship same day so your furnace is back online fast.

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 PG9MAB048080AASA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PG9MAB048080AASA. 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 PG9MAB048080AASA?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online