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OEM Carrier High Pressure Switch HK02ZA395 for PH2PEB042000AA
Carrier

OEM Carrier High Pressure Switch HK02ZA395 for PH2PEB042000AA

SKU: CARRIE-PH2PEB042000AA-PRESSURE_SWITCH-HK02ZA395 Brand: Carrier
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Texas CMBL #19328542014
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OEM Carrier High Pressure Switch HK02ZA395 for Model PH2PEB042000AA

This OEM high pressure safety switch (part number HK02ZA395) is the factory-specified replacement for the Carrier PH2PEB042000AA heat pump system. The high pressure switch is a critical refrigerant-circuit safety device: it continuously monitors refrigerant discharge pressure and opens the circuit when pressure exceeds the factory set point, preventing compressor damage or refrigerant line failure. When this switch fails or trips and won't reset, your system will lock out on a high-pressure fault — typically resulting in no cooling, a flashing fault code, or a system that shuts off within minutes of startup.

  • Specs — HK02ZA395: Opens at 395 PSI | Closes at 295 PSI | 240 VAC | 6(6)A rated | 1/8" NPT thread | Sensata PS80 platform | PMAX 41B | Certifications: EN12263, ENEC05, EN60730-2-6
  • OEM vs Generic: This is a safety-critical refrigerant pressure switch — OEM is strongly recommended. Factory-spec trip points (395/295 PSI) are precision-calibrated for the PH2PEB042000AA refrigerant circuit. Aftermarket substitutes with loose tolerances risk nuisance trips or, worse, under-protection of the compressor.
  • Install Difficulty: 3/5 — Refrigerant must be recovered before replacing this switch on a pressurized circuit. Tools needed: manifold gauge set, refrigerant recovery unit, 1/8" NPT fittings, Teflon tape, multimeter. Licensed technician recommended for refrigerant handling. Always confirm system is de-energized before servicing.
  • Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PH2PEB042000AA heat pump. Also cross-references legacy part numbers including 312926-217, 71267D1, HK02ZA380, HK02ZA396, and 19240027. A secondary pressure switch, HK02ZB044 (Low Pressure Switch — 7 PSI Open / 22 PSI Close, 50" leads, 24V), is also used on this model and is available separately on our site. Verify your unit's data plate and wiring diagram to confirm which switch requires replacement 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 PH2PEB042000AA?
Yes. This is the factory-specified OEM pressure switch for the Carrier PH2PEB042000AA. 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 PH2PEB042000AA?
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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