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OEM Carrier Draft Pressure Switch 0.18
Carrier

OEM Carrier Draft Pressure Switch 0.18" WC for PY3GNAA36060AA

SKU: CARRIE-PY3GNAA36060AA-PRESSURE_SWITCH-HK06WC061 Brand: Carrier
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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier Draft Inducer Pressure Switch 0.18" WC for Model PY3GNAA36060AA

This OEM draft pressure proving switch is the factory-specified replacement for the Carrier PY3GNAA36060AA packaged gas unit. The pressure switch monitors negative pressure created by the inducer (draft) motor to confirm adequate venting airflow before the control board allows ignition to proceed. When it fails or sticks open, the furnace or packaged unit will lock out prior to ignition — often with a diagnostic fault code indicating a pressure switch or inducer fault. A faulty pressure switch is one of the most common no-heat service calls on Carrier packaged equipment.

  • Specs: 0.18" W.C. (inches water column) setpoint | Single-port draft proving switch | Normally open (N.O.) closes on negative pressure | OEM Part # HK06WC061 (superseded by HK06MB061) | Cross-references Honeywell IS20224-5236
  • OEM vs Generic: This OEM switch is factory-calibrated to the exact 0.18" W.C. setpoint required by the PY3GNAA36060AA control board. Off-spec aftermarket switches can trip at incorrect pressures, causing nuisance lockouts or, worse, allowing ignition under unsafe venting conditions.
  • Install Difficulty: 2/5 — Shut off gas and power before servicing. Locate the switch on the inducer housing or gas valve assembly. Disconnect the rubber pressure tubing and two-wire harness connector. Swap and reconnect — no special tools required. A manometer is recommended to verify inducer draft pressure post-install. Tools needed: flathead screwdriver, needle-nose pliers.
  • Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier PY3GNAA36060AA packaged gas/electric units. Also fits select Bryant and Payne models sharing the same inducer and control board architecture. Always 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 — order with confidence and get your system back online 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 PY3GNAA36060AA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PY3GNAA36060AA. 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 PY3GNAA36060AA?
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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