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OEM Carrier Pressure Switch 0.18
Carrier

OEM Carrier Pressure Switch 0.18" WC for PY3GNAA60090NA

SKU: CARRIE-PY3GNAA60090NA-PRESSURE_SWITCH-HK06WC061 Brand: Carrier
✓ Guaranteed to fit PY3GNAA60090NA — 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 PY3GNAA60090NA

This OEM draft pressure switch is the factory-specified replacement for the Carrier PY3GNAA60090NA gas furnace. The pressure switch monitors negative pressure created by the induced draft blower to confirm safe venting conditions before allowing ignition. When this switch fails or drifts out of calibration, the control board detects an unsafe condition and locks out the furnace — typically before the ignition sequence ever begins. Common symptoms include a furnace that runs the inducer motor briefly, then shuts off and flashes a pressure switch fault code, or a unit that will not advance past the draft proving stage at all.

  • Specs: 0.18" W.C. (inches water column) set point | Normally open | Single-port design | Replaces OEM part HK06WC061 (superseded to HK06MB061) | Also cross-references Honeywell IS20224-5236
  • OEM vs Generic: This is a genuine OEM-specification part with factory-calibrated trip point. Aftermarket pressure switches often carry a ±10–15% tolerance on the W.C. rating, which can cause nuisance lockouts or, worse, allow ignition under marginal venting conditions — a safety risk. OEM is the only choice for a life-safety component.
  • Install Difficulty: 2/5 — Power down and lock out the furnace before starting. Locate the switch on the inducer housing, disconnect the rubber hose and two-wire harness, and swap the switch. Tools needed: flathead screwdriver, needle-nose pliers. Always inspect the hose for cracks or blockages while the switch is off — a collapsed hose is a frequent companion fault.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Fits Carrier model PY3GNAA60090NA packaged gas furnace. Also fits select Bryant and Payne models sharing the HK06WC061 / HK06MB061 specification — verify the 0.18" W.C. rating on your existing switch before ordering. Have a question about fitment? Our HVAC parts specialists confirm 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 PY3GNAA60090NA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PY3GNAA60090NA. 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 PY3GNAA60090NA?
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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