Same-day shipping on orders before 3PM CST · 15,000+ OEM Parts In Stock · Carrier · Bryant · ICP · Heil · Tempstar
Track Order | 1-800-NHP-HVAC | Trade Accounts

Menu

Home Shop All Account Cart
Home / OEM Payne High Pressure Switch HK02ZA...
OEM Payne High Pressure Switch HK02ZA395 for PA1ZPA036000ABAA
Payne

OEM Payne High Pressure Switch HK02ZA395 for PA1ZPA036000ABAA

SKU: PAYNE-PA1ZPA036000ABAA-PRESSURE_SWITCH-HK02ZA395 Brand: Payne

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

OEM Payne High Pressure Switch HK02ZA395 for Model PA1ZPA036000ABAA

This is the factory OEM high pressure switch (part number HK02ZA395) designed specifically for the Payne PA1ZPA036000ABAA packaged air conditioning unit. The pressure switch monitors the refrigerant or inducer system to confirm safe operating pressures before allowing the control board to proceed through the startup sequence. When this switch fails or becomes stuck open, the unit will lock out before ignition, display a fault code, or fail to initiate the heating or cooling cycle entirely — leaving you with no conditioned air.

  • Specs: OEM High Pressure Switch | Part No. HK02ZA395 | Factory-rated W.C. (water column) setting matched to PA1ZPA036000ABAA specifications | Direct plug-in connector for OEM harness compatibility
  • OEM vs Generic: This is a genuine OEM Payne pressure switch manufactured to exact factory tolerances. Generic aftermarket switches often carry imprecise trip points that cause nuisance lockouts or — worse — fail to protect the system under true fault conditions, risking equipment damage.
  • Install Difficulty: 2/5 — Disconnect power before servicing. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, and a multimeter to verify continuity after installation. Photograph the wiring harness before disconnecting the old switch. Always check for blocked flue or drain lines that may have caused the original failure.
  • Warranty: Backed by a 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: This pressure switch is the direct OEM replacement for the Payne PA1ZPA036000ABAA packaged unit. Always verify the part number on your existing switch or equipment data plate before ordering to confirm fitment. Our team is available to verify compatibility before you purchase — contact us with your full model and serial number for assistance. Order today and enjoy same-day shipping on all in-stock OEM Payne parts.

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 $75
  • 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 support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Pressure Switch fit my Payne PA1ZPA036000ABAA?
Yes. This is the factory-specified OEM pressure switch for the Payne PA1ZPA036000ABAA. 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 Payne PA1ZPA036000ABAA?
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 Payne 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 Payne 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.
Home Shop Search Account Cart