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OEM Carrier High Pressure Switch 395 PSI for PH1ZNA048000ABAA
Carrier

OEM Carrier High Pressure Switch 395 PSI for PH1ZNA048000ABAA

SKU: CARRIE-PH1ZNA048000ABAA-PRESSURE_SWITCH-HK02ZA395 Brand: Carrier
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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier High Pressure Switch HK02ZA395 for Model PH1ZNA048000ABAA

This is the genuine OEM factory-specified high pressure switch for the Carrier PH1ZNA048000ABAA heat pump system. The high pressure switch (HK02ZA395) is a critical refrigerant-circuit safety device that monitors system discharge pressure and cuts power to the compressor if pressure exceeds safe operating limits. A failed or tripped high pressure switch will cause the system to lock out, display a fault code, or short-cycle — symptoms commonly misdiagnosed as a refrigerant, compressor, or control board issue. Also included in this listing is the companion low pressure switch HK02ZB044 (opens 7 PSI / closes 22 PSI, 50" leads), completing the full refrigerant-circuit pressure protection package for this model.

  • Specs (HK02ZA395 — High Pressure Switch): Opens at 395 PSI | Closes at 295 PSI | 1/8" NPT thread | 240 VAC | PMAX 41B | Sensata PS80-03-0018 platform | Factory-certified OEM
  • Specs (HK02ZB044 — Low Pressure Switch): Opens at 7 PSI | Closes at 22 PSI | 50" wire leads | 24V | Made in Mexico | OEM Carrier RCD
  • OEM vs Generic: Genuine Carrier OEM switches are manufactured to exact cut-in/cut-out tolerances and carry full agency listings (EN12263, EN60730-2-6). Aftermarket substitutes frequently exhibit pressure drift, causing nuisance trips or — worse — failure to protect the compressor, leading to a costly compressor replacement.
  • Install difficulty: 3/5 — Refrigerant-side work requires EPA 608 certification. Tools needed: manifold gauge set, adjustable wrench, wire terminals. Always recover refrigerant before disconnecting the high-side switch. Photograph all wiring before removal. Low-side switch replacement is less invasive but system must still be de-energized.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse.

Compatibility: Engineered for Carrier model PH1ZNA048000ABAA heat pump systems. Cross-references: HK02ZA395 replaces 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, HK02ZA501 and others. Verify OEM part numbers against your unit's wiring diagram or data plate before ordering. Order now and we'll ship it 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 PH1ZNA048000ABAA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PH1ZNA048000ABAA. 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 PH1ZNA048000ABAA?
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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