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OEM Carrier Pressure Switch 0.18
Carrier

OEM Carrier Pressure Switch 0.18" WC for PY4GPAB48090NA — HK06WC061

SKU: CARRIE-PY4GPAB48090NA-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 PY4GPAB48090NA (HK06WC061 / HK06MB061)

This is the factory-authorized replacement pressure switch for the Carrier PY4GPAB48090NA packaged unit. The pressure switch proves that the draft inducer motor is operating correctly before allowing the ignition sequence to begin. When this switch fails or sticks, the control board cannot verify proper venting and will lock out the system entirely — resulting in a furnace or heat pump that refuses to fire, often with a flashing fault code indicating a pressure switch error. Common failure symptoms include the unit running the inducer but never advancing to ignition, or nuisance lockouts during cold or wet weather.

  • Specs: 0.18" W.C. (water column) set point | SPST (Single-Pole, Single-Throw) | Draft inducer proving switch | Replaces OEM part numbers HK06WC061 and updated supersede HK06MB061 | Also cross-references Honeywell IS20224-5236
  • OEM vs Generic: This OEM-spec switch is calibrated to the exact 0.18" W.C. trip point required by the Carrier PY4GPAB48090NA control board. Generic aftermarket switches often carry wider tolerances that cause nuisance trips or fail to prove draft reliably, leading to repeat service calls.
  • Install difficulty: 2/5 — Straightforward swap. Tools needed: 1/4" nut driver, flathead screwdriver, and needle-nose pliers for hose barb removal. Always disconnect power at the breaker before servicing. Photograph all tubing connections before removal to ensure correct reassembly of the rubber sensing hose.
  • Warranty: 1-year manufacturer's warranty on genuine OEM part. Orders placed before 3 PM local time ship same business day from our warehouse.

Compatibility: Designed for the Carrier PY4GPAB48090NA packaged unit. Also fits a broad range of Carrier, Bryant, and Payne furnaces and packaged units using the 0.18" WC pressure switch specification — confirm your unit's data plate and existing switch rating before ordering. Note: HK06WC061 has been superseded by HK06MB061; both part numbers are fulfilled by this listing. 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 PY4GPAB48090NA — HK06WC061?
Yes. This is the factory-specified OEM pressure switch for the Carrier PY4GPAB48090NA — 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 PY4GPAB48090NA — 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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