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OEM Payne High/Low Pressure Switch Kit for PA13NR042000AAAA
Payne

OEM Payne High/Low Pressure Switch Kit for PA13NR042000AAAA

SKU: PAYNE-PA13NR042000AAAA-PRESSURE_SWITCH-HK02ZA395 Brand: Payne

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

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OEM Payne High & Low Pressure Switch Kit for Model PA13NR042000AAAA

This OEM pressure switch kit includes both the high pressure switch (HK02ZA395) and low pressure switch (HK02ZB028) factory-specified for the Payne PA13NR042000AAAA split-system air conditioner. Pressure switches monitor refrigerant circuit pressures and send a safety signal to the control board to prevent compressor and system damage. When either switch fails — or trips and won't reset — you'll typically see symptoms such as a system that won't start, shuts off immediately after startup, or trips into a fault lockout code with no obvious refrigerant leak present.

  • Specs: HK02ZA395 — High Pressure Switch, factory-calibrated cutout set point | HK02ZB028 — Low Pressure Switch, factory-calibrated cutout set point | Both are OEM Carrier/Payne-series components rated for R-410A refrigerant systems | Exact pressure trip points matched to PA13NR042000AAAA factory design specifications
  • OEM vs Generic: OEM pressure switches are calibrated to precise factory trip points, ensuring your system cuts out at exactly the right refrigerant pressure. Generic alternatives often carry wider tolerances, risking compressor operation outside safe pressure ranges and potentially voiding equipment warranties.
  • Install difficulty: 3/5 — Refrigerant circuit must be safely isolated or recovered before replacing pressure switches. Tools needed: refrigerant manifold gauges, adjustable wrench, multimeter for continuity verification, and proper HVAC service gloves. EPA 608 certification recommended. Always verify refrigerant pressure is within normal range before condemning a switch — an underlying refrigerant issue may be the root cause.
  • Warranty: 1-year OEM factory warranty on both switches. Orders ship same business day from our warehouse when placed before cutoff.

Compatibility: This kit is designed specifically for the Payne PA13NR042000AAAA 3.5-ton single-stage R-410A split-system condenser. Always verify OEM part numbers HK02ZA395 and HK02ZB028 against your unit's wiring diagram or data plate before ordering. Our fitment team is available to confirm compatibility before you purchase — same-day shipping available on in-stock OEM 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 PA13NR042000AAAA?
Yes. This is the factory-specified OEM pressure switch for the Payne PA13NR042000AAAA. 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 PA13NR042000AAAA?
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.
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