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OEM Payne Pressure Switch High/Low for PA13NR04800GADAA
Payne

OEM Payne Pressure Switch High/Low for PA13NR04800GADAA

SKU: PAYNE-PA13NR04800GADAA-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 for Model PA13NR04800GADAA

These OEM pressure switches — HK02ZA395 (High Pressure Switch) and HK02ZB028 (Low Pressure Switch) — are the factory-specified replacements for the Payne PA13NR04800GADAA packaged unit. Pressure switches prove that the inducer motor has established proper draft before allowing the ignition sequence to begin. A failed pressure switch will prevent the unit from advancing past the inducer stage, resulting in a no-heat lockout condition, often accompanied by a diagnostic fault code on the control board. Common failure symptoms include the inducer running continuously with no ignition attempt, or the system locking out after three successive failed trials.

  • Specs: HK02ZA395 — High Pressure Switch, factory W.C. rating matched to PA13NR04800GADAA | HK02ZB028 — Low Pressure Switch, factory W.C. rating matched to PA13NR04800GADAA | SPST normally-open contacts | 1/4" Santoprene hose port | OEM ±0.10" W.C. calibration tolerance
  • OEM vs Generic: OEM pressure switches are factory-calibrated to exact water column (W.C.) ratings required by the PA13NR04800GADAA heat exchanger and inducer assembly. Generic switches frequently carry wider tolerances that can allow unsafe combustion conditions or nuisance tripping — not a component to substitute with off-brand alternatives.
  • Install difficulty: 2/5 — Shut off power and gas before servicing. Tools needed: 1/4" nut driver, needle-nose pliers, multimeter (continuity setting), and a manometer if verifying W.C. rating. Photograph hose routing before disconnecting. Check hose and port for blockage or cracks before condemning the switch.
  • Warranty: 1-year OEM factory warranty on both HK02ZA395 and HK02ZB028. Orders ship same business day from our stocked warehouse.

Compatibility: Both switches are engineered specifically for the Payne PA13NR04800GADAA packaged gas/electric unit. Confirm your existing switch part number (printed on the switch body label) matches HK02ZA395 or HK02ZB028 before ordering. If you are unsure which switch has failed, our technical team can assist with diagnosis — contact us before your order ships and we'll verify fitment at no charge.

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 PA13NR04800GADAA?
Yes. This is the factory-specified OEM pressure switch for the Payne PA13NR04800GADAA. 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 PA13NR04800GADAA?
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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