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OEM Carrier High Pressure Switch HK02ZA395 for PH1PNB036000ABAA
Carrier

OEM Carrier High Pressure Switch HK02ZA395 for PH1PNB036000ABAA

SKU: CARRIE-PH1PNB036000ABAA-PRESSURE_SWITCH-HK02ZA395 Brand: Carrier
✓ Guaranteed to fit PH1PNB036000ABAA — or your money back. Terms

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Texas CMBL #19328542014
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OEM Carrier High Pressure Switch HK02ZA395 for Model PH1PNB036000ABAA

This genuine OEM Carrier high pressure safety switch (part number HK02ZA395) is the factory-specified replacement for the Carrier PH1PNB036000ABAA heat pump system. The high pressure switch monitors refrigerant pressure on the discharge side of the compressor and opens the safety circuit when pressure exceeds safe operating limits — protecting the compressor from catastrophic over-pressure failure. When this switch fails or trips, symptoms include nuisance high-pressure lockouts, no-cooling or no-heating operation, and fault codes on the control board. A secondary low pressure switch, HK02ZB044 (opens at 7 PSI / closes at 22 PSI), is also associated with this model and sold separately — consider inspecting both switches during diagnosis.

  • Specs: Opens at 395 PSI | Closes at 295 PSI | 1/8" NPT thread | 240 VAC rated | Sensata PS80-03-0018 platform | OEM part number HK02ZA395
  • OEM vs Generic: This is a genuine Carrier OEM switch — factory-matched pressure thresholds ensure the compressor is protected at the exact design set points. Aftermarket switches with loose tolerances can allow over-pressure conditions that void compressor warranties.
  • Install Difficulty: 2/5 — Recover all refrigerant before disconnecting the switch (EPA Section 608 required). Tools needed: manifold gauge set, refrigerant recovery machine, 1-1/16" open-end wrench, thread sealant (PTFE tape rated for refrigerant). Always verify system pressure is zero before removal.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before 3 PM ET.

Compatibility: Designed as a direct OEM replacement for Carrier model PH1PNB036000ABAA. Also replaces legacy part numbers: 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Verify the open/close PSI ratings on your unit's data plate before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us today.

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 PH1PNB036000ABAA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PH1PNB036000ABAA. 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 PH1PNB036000ABAA?
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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