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OEM Carrier High Pressure Switch 406/300 PSI for PY1PNB060090AAAA
Carrier

OEM Carrier High Pressure Switch 406/300 PSI for PY1PNB060090AAAA

SKU: CARRIE-PY1PNB060090AAAA-PRESSURE_SWITCH-HK02ZA395 Brand: Carrier
✓ Guaranteed to fit PY1PNB060090AAAA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier High Pressure Switch HK02ZA395 — 406/300 PSI for Model PY1PNB060090AAAA

This is the genuine OEM Carrier high pressure safety switch (part number HK02ZA395), factory-specified for the Carrier PY1PNB060090AAAA packaged heat pump unit. The high pressure switch is a critical refrigerant-circuit safety device that monitors system discharge pressure and opens the control circuit if pressure exceeds a safe threshold — protecting the compressor from catastrophic failure due to refrigerant overcharge, blocked condenser coil, or restricted airflow. Failure symptoms include: system trips off on a fault code, compressor short-cycles, or the unit locks out and will not restart without a manual reset.

  • Specs: Opens at 406 PSI | Closes at 300 PSI | 1/8" NPT thread connection | Rated 6(6)A at 240 VAC | PMAX 41B | Sensata PS80-03-0018 platform | Replaces HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, and more
  • OEM vs Generic: This is a genuine Carrier OEM switch manufactured to exact factory pressure tolerances. Generic aftermarket switches frequently deviate from set-point specs, risking either false trips under normal load or, worse, failure to open under true overpressure — both of which accelerate compressor wear and void manufacturer warranties.
  • Install Difficulty: 2/5 — Always recover refrigerant and depressurize the system before replacing a high pressure switch. Tools needed: refrigerant recovery machine, manifold gauges, adjustable wrench, Teflon tape, leak detection solution. Torque the 1/8" NPT fitting carefully to avoid cracking the switch body. Verify system pressures after recharge.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed and tested for the Carrier PY1PNB060090AAAA packaged heat pump. This switch also supersedes numerous legacy Carrier/Bryant part numbers — confirm your unit's refrigerant type and discharge pressure rating against your data plate before ordering. Questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today and we'll ship your order the same day.

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 PY1PNB060090AAAA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PY1PNB060090AAAA. 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 PY1PNB060090AAAA?
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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