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 PA1ZNA024000ACAA
Payne

OEM Payne High Pressure Switch HK02ZA395 for PA1ZNA024000ACAA

SKU: PAYNE-PA1ZNA024000ACAA-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 PA1ZNA024000ACAA

This OEM high pressure switch (part number HK02ZA395) is the factory-specified replacement for the Payne PA1ZNA024000ACAA air handler or heating system. The pressure switch is a critical safety component that monitors the negative pressure created by the inducer draft motor to confirm proper venting before allowing ignition to proceed. When the switch fails — or when it detects an out-of-range pressure reading — it breaks the control circuit, preventing the system from firing. Common symptoms of a failed pressure switch include a system that attempts to start but locks out before ignition, a blinking fault code indicating a pressure switch error, or an inducer motor that runs continuously without the burners lighting.

  • Specs: High pressure switch | OEM part number HK02ZA395 | Factory-calibrated W.C. (water column) rating | Designed for single-stage inducer verification on Payne PA1ZNA024000ACAA systems
  • OEM vs Generic: OEM pressure switches are calibrated to the exact water column specification required by your unit. Generic replacements frequently carry wider tolerances that can cause nuisance trips or, worse, fail to detect a true venting problem — a serious safety risk.
  • Install difficulty: 3/5 — Power down the unit and confirm no residual voltage before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, a manometer (recommended to verify W.C. after installation). Inspect the rubber hose and port for blockages or cracks before replacing the switch alone.
  • Warranty: 1-year OEM factory warranty against defects. Orders placed before cutoff ship same business day from our warehouse.

Compatibility: Engineered specifically for the Payne PA1ZNA024000ACAA. Always verify the W.C. rating stamped on your existing switch matches HK02ZA395 before installation. If you are unsure of fitment, our HVAC parts team is available to confirm compatibility before you order. In stock and ready to ship today — get your system back online fast.

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 PA1ZNA024000ACAA?
Yes. This is the factory-specified OEM pressure switch for the Payne PA1ZNA024000ACAA. 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 PA1ZNA024000ACAA?
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