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OEM Carrier Pressure Switch 0.18
Carrier

OEM Carrier Pressure Switch 0.18" WC for PY4GNAA24060AA | HK06WC061

SKU: CARRIE-PY4GNAA24060AA-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 Inducer Pressure Switch 0.18" WC for Model PY4GNAA24060AA

This OEM Carrier pressure switch (part number HK06WC061, superseded by HK06MB061) is the factory-specified replacement for the Carrier PY4GNAA24060AA packaged unit. The pressure switch monitors the negative pressure created by the draft inducer motor to confirm safe venting conditions before allowing the ignition sequence to proceed. When this switch fails or sticks, the furnace will lock out on a pressure switch fault — typically before the igniter ever glows — leaving you with a no-heat call and a blinking fault code on the control board.

  • Specs: 0.18" Water Column (W.C.) rating | SPST (Single Pole, Single Throw) | Draft-proving / inducer-proving switch | Cross-references Honeywell IS20224-5236 | Supersedes OEM part HK06WC061 → current OEM: HK06MB061
  • OEM vs Generic: This is a genuine Carrier Factory Authorized Part — manufactured to exact W.C. setpoint tolerances. Aftermarket pressure switches frequently carry ±10–15% W.C. variance, causing nuisance lockouts or, worse, failing to detect true venting faults that can lead to CO spillage.
  • Install difficulty: 2/5 — Power down the unit at the disconnect and thermostat before starting. Tools needed: 1/4" nut driver or 5/16" hex driver, needle-nose pliers, and a manometer (recommended to verify W.C. setpoint post-install). Note the hose barb port orientation before disconnecting the rubber pressure tube. Swap terminals one at a time to avoid miswiring.
  • Warranty: 1-year OEM manufacturer warranty. Orders placed by 5 PM local time ship same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for Carrier model PY4GNAA24060AA packaged units. Also fits a broad range of Carrier, Bryant, and Payne furnaces and packaged units requiring a 0.18" W.C. draft-inducer pressure switch. Always verify the W.C. rating stamped on your existing switch's label before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — call or chat today.

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 PY4GNAA24060AA | HK06WC061?
Yes. This is the factory-specified OEM pressure switch for the Carrier PY4GNAA24060AA | 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 PY4GNAA24060AA | 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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