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OEM Carrier Pressure Switch 0.18
Carrier

OEM Carrier Pressure Switch 0.18" WC for PY4GNAB24060NA — HK06WC061

SKU: CARRIE-PY4GNAB24060NA-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 PY4GNAB24060NA (HK06WC061 / HK06MB061)

This OEM draft pressure-proving switch is the factory-specified replacement for the Carrier PY4GNAB24060NA packaged unit. The pressure switch monitors the negative pressure (draft) created by the inducer motor before allowing the ignition sequence to proceed. When it fails — or when the inducer is unable to generate adequate draft — the switch stays open, locking out the furnace before a single spark fires. Symptoms include a system that attempts to start but shuts down immediately, an inducer that runs continuously with no ignition, or a fault code indicating a pressure switch failure on your control board.

  • Specs: 0.18" Water Column (WC) set point | SPST normally open | Replaces OEM part HK06WC061 (superseded by HK06MB061) | Also replaces Honeywell IS20224-5236 and 1639D2/B
  • OEM vs Generic: OEM pressure switches are manufactured to exact factory trip-point tolerances. Generic aftermarket switches can drift ±0.02" WC or more, causing nuisance lockouts or — worse — allowing ignition under unsafe draft conditions. Only OEM ensures the precise 0.18" WC threshold your Carrier system was designed around.
  • Install difficulty: 2/5 — Turn off power and gas before beginning. Tools needed: 1/4" nut driver, flathead screwdriver, and a manometer (recommended to verify draft after installation). Photograph hose and wiring connections before removal. Swap the single pressure hose and two wire terminals, then restore power.
  • Warranty & Shipping: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY4GNAB24060NA packaged unit. Also fits select Bryant and Payne models using the 0.18" WC draft pressure switch specification. Verify your existing switch's WC rating on the data plate or switch body before ordering — using the wrong trip point is a common installation error. Have questions about fitment? Our HVAC parts team confirms compatibility before you order — no guesswork.

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 PY4GNAB24060NA — HK06WC061?
Yes. This is the factory-specified OEM pressure switch for the Carrier PY4GNAB24060NA — 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 PY4GNAB24060NA — 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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