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OEM Carrier Pressure Switch 0.18
Carrier

OEM Carrier Pressure Switch 0.18" WC for PY3GNAA36090NA — HK06WC061

SKU: CARRIE-PY3GNAA36090NA-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 PY3GNAA36090NA

This is the factory-specified OEM replacement draft inducer pressure switch for the Carrier PY3GNAA36090NA gas furnace. The pressure switch is a critical safety component that monitors the negative pressure created by the inducer motor to confirm proper venting before allowing the ignition sequence to proceed. When this switch fails or sticks open, the furnace control board will lock out the heating cycle entirely — leaving you with a no-heat call and a flashing fault code indicating a pressure switch error. Common symptoms include the inducer motor running but the furnace never advancing to ignition, or repeated short-cycling with a pressure switch fault.

  • Specs: 0.18" Water Column (WC) set point | SPST (Single-Pole, Single-Throw) | Negative pressure sensing | OEM part HK06WC061, superseded by HK06MB061 | Cross-references Honeywell IS20224-5236 / 1639D2/B
  • OEM vs Generic: This OEM-equivalent switch is factory-calibrated to the exact 0.18" WC trip point required by your Carrier furnace. Off-brand switches with loose tolerances can trip too early or too late, causing nuisance lockouts or, worse, allowing the furnace to fire without confirmed venting.
  • Install difficulty: 2/5 — Turn off power and gas before beginning. Tools needed: 1/4" nut driver, flat-head screwdriver, and needle-nose pliers. Disconnect the hose and two wiring terminals, swap the switch, and reconnect. Always verify hose integrity for cracks while the panel is open.
  • Warranty: 1-year OEM manufacturer warranty. In-stock orders ship same business day from our warehouse when ordered by 5 PM local time.

Compatibility: Engineered for the Carrier PY3GNAA36090NA packaged gas/electric unit. Also fits select Bryant and Payne models sharing the same inducer assembly and 0.18" WC specification. Note: OEM part number HK06WC061 has been superseded — this listing ships the current authorized replacement HK06MB061, which is a direct drop-in. Verify your existing switch's WC rating on the label before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility 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 PY3GNAA36090NA — HK06WC061?
Yes. This is the factory-specified OEM pressure switch for the Carrier PY3GNAA36090NA — 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 PY3GNAA36090NA — 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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