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OEM Carrier High Pressure Switch HK02ZA395 for PH2PEB036000AA
Carrier

OEM Carrier High Pressure Switch HK02ZA395 for PH2PEB036000AA

SKU: CARRIE-PH2PEB036000AA-PRESSURE_SWITCH-HK02ZA395 Brand: Carrier
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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier High Pressure Switch HK02ZA395 for Model PH2PEB036000AA

This OEM high pressure switch (part number HK02ZA395) is the factory-specified refrigerant-side safety device for the Carrier PH2PEB036000AA heat pump system. Its job is to monitor refrigerant high-side pressure and open the safety circuit if pressure exceeds the factory cutout threshold — protecting the compressor from catastrophic damage. A failed or stuck-open switch will trigger a system lockout, prevent cooling or heating operation, and may display a fault code on your thermostat or control board. The companion low-side pressure switch HK02ZB044 is also available and commonly replaced at the same service call.

  • Specs — HK02ZA395 (High Pressure Switch): Opens at 395 PSI | Closes at 295 PSI | 1/8" NPT male fitting | 240 VAC rated | SPST normally closed | Sensata PS80 platform | Replaces: 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435
  • Specs — HK02ZB044 (Low Pressure Switch): Opens at 7 PSI | Closes at 22 PSI | 50" lead wires | 24V | Factory-matched OEM tolerances for the PH2PEB036000AA refrigerant circuit
  • OEM vs Generic: OEM Carrier pressure switches are calibrated to exact PSI thresholds at the factory. Generic aftermarket switches frequently carry ±10–15% PSI variance, risking nuisance trips or — worse — under-protection of the compressor. For a refrigerant-side safety device, OEM is always the recommended choice.
  • Install difficulty: 3/5 — Refrigerant-side pressure switches require system recovery or careful isolation before replacement. Tools needed: refrigerant manifold gauges, 1/4" and 5/16" flare wrenches, multimeter for continuity verification. EPA 608 certification required if refrigerant is handled. Always de-energize the unit at the disconnect before beginning.
  • Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse.

Compatibility: Engineered for Carrier model PH2PEB036000AA heat pump systems. Both OEM part numbers — HK02ZA395 (high pressure) and HK02ZB044 (low pressure) — are stocked and ready to ship. Verify your unit's data plate and existing switch PSI markings before ordering. Our fitment team is available to confirm compatibility before you buy.

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 PH2PEB036000AA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PH2PEB036000AA. 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 PH2PEB036000AA?
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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