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OEM Carrier Pressure Switch 0.18
Carrier

OEM Carrier Pressure Switch 0.18" WC for PY3GNA048090AA — HK06WC061

SKU: CARRIE-PY3GNA048090AA-PRESSURE_SWITCH-HK06WC061 Brand: Carrier
✓ Guaranteed to fit HK06WC061 — or your money back. Terms

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Draft Pressure Switch 0.18" WC for Model PY3GNA048090AA (HK06WC061 / HK06MB061)

This OEM Carrier draft inducer pressure switch is the factory-specified replacement for the Carrier PY3GNA048090AA packaged gas unit. The pressure switch monitors negative pressure created by the inducer motor to confirm safe venting conditions before allowing the ignition sequence to proceed. When it fails or sticks open, the furnace will lock out before ever reaching the ignition stage — leaving you with a no-heat call and a blinking fault code indicating pressure switch failure.

  • Specs: 0.18" Water Column (WC) set point | SPST normally open | Replaces OEM part HK06WC061 (superseded by HK06MB061) | Factory-matched trip point for precise inducer proving
  • OEM vs Generic: OEM pressure switches are calibrated to the exact WC set point required by your unit's heat exchanger and flue design. Off-spec generic switches can trip too early or too late — causing nuisance lockouts or, worse, allowing combustion gases to linger.
  • Install difficulty: 2/5 — Shut off gas and power before servicing. Tools needed: 1/4" nut driver, needle-nose pliers, and a manometer (recommended for verification). Disconnect the hose barb and two spade terminals, swap the switch, and confirm operation on the next call for heat.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PY3GNA048090AA packaged gas/electric unit. Also compatible with select Bryant and Payne models using the 0.18" WC SPST pressure switch specification. Verify the WC rating on your existing switch before ordering. Our team is available to confirm fitment — just reach out before you buy.

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 PY3GNA048090AA — HK06WC061?
Yes. This is the factory-specified OEM pressure switch for the Carrier PY3GNA048090AA — HK06WC061. 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 PY3GNA048090AA — HK06WC061?
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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