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OEM Carrier Pressure Switch w/ Bracket .33 WC — HK06WC090
Carrier

OEM Carrier Pressure Switch w/ Bracket .33 WC — HK06WC090

SKU: CARRIE-PG8DAA036050ADJA-PRESSURE_SWITCH-HK06WC090 Brand: Carrier
✓ Guaranteed to fit HK06WC090 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Pressure Switch w/ Bracket (-0.33" W.C.) for Model PG8DAA036050ADJA

This is the factory-specified OEM pressure switch with mounting bracket for the Carrier PG8DAA036050ADJA packaged gas furnace. The pressure switch is a normally-open safety device that monitors the negative pressure (draft) created by the inducer motor. Once the inducer reaches proper speed and airflow, the diaphragm inside the switch deflects and closes the circuit — signaling the control board to advance to the ignition sequence. If the switch fails, sticks open, or the hose connection becomes cracked or blocked, the furnace will lock out before ignition, generating a fault code and leaving the home without heat.

  • Specs: -0.33" W.C. (inches water column) set point | Includes factory mounting bracket | SPST normally-open | Replaces HK06WC088, HK06WC086, HK06WC076, HK06WC072, HK06WC073, HK06WC074, HK660001, 326750-751, 310315-751, 310315-752
  • OEM vs Generic: This is a genuine Carrier OEM part engineered to the exact diaphragm tension and W.C. rating for the PG8DAA series. Generic substitutes often carry ±10–15% W.C. variance, which can cause nuisance lockouts or, worse, allow the furnace to fire under inadequate draft conditions.
  • Install difficulty: 2/5 — Tools needed: 1/4" nut driver, needle-nose pliers, flathead screwdriver. Turn off power and gas before beginning. Disconnect the rubber hose from the inducer port, unplug the wiring harness, remove the bracket screws, and reverse for installation. Inspect the rubber hose for cracks or blockages before condemning the switch itself.
  • Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Verified fit for Carrier model PG8DAA036050ADJA packaged gas furnace. Cross-references multiple superseded Carrier pressure switch part numbers — see spec list above. Always confirm the W.C. rating on your existing switch before ordering. Our fitment team is available to verify compatibility prior to purchase — no guesswork required.

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 OEM Carrier Pressure Switch w/ Bracket .33 WC — HK06WC090?
Yes. This is the factory-specified OEM pressure switch for the Carrier OEM Carrier Pressure Switch w/ Bracket .33 WC — HK06WC090. 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 OEM Carrier Pressure Switch w/ Bracket .33 WC — HK06WC090?
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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