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OEM Carrier High Pressure Switch Kit for PH10JA048000ABAA — HK02ZA395
Carrier

OEM Carrier High Pressure Switch Kit for PH10JA048000ABAA — HK02ZA395

SKU: CARRIE-PH10JA048000ABAA-PRESSURE_SWITCH-HK02ZA395 Brand: Carrier
✓ Guaranteed to fit HK02ZA395 — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier High & Low Pressure Switch Kit for Model PH10JA048000ABAA — HK02ZA395 & HK02ZB038

This OEM pressure switch kit includes both the high pressure switch (HK02ZA395) and the low pressure switch (HK02ZB038), the factory-specified refrigerant safety switches for the Carrier PH10JA048000ABAA heat pump system. These switches continuously monitor refrigerant circuit pressure and protect the compressor from catastrophic damage caused by abnormal high- or low-side pressure conditions. When either switch fails or trips and won't reset, the system will lock out on a fault code, resulting in a complete loss of cooling or heating — even if the compressor and refrigerant charge are otherwise fine.

  • Specs — HK02ZA395 (High Pressure Switch): Opens at 395 PSI | Closes at 295 PSI | 1/8" NPT thread | 240 VAC | Sensata PS80-03-0018 platform | SPST normally closed
  • Specs — HK02ZB038 (Low Pressure Switch): Opens at 7 PSI | Closes at 22 PSI | 50" lead wires | Sensata PS80 platform | Designed for R-410A refrigerant circuits
  • OEM vs Generic: OEM Carrier pressure switches are calibrated to exact trip-point tolerances for the PH10JA048000ABAA refrigerant circuit. Generic aftermarket switches frequently carry wider pressure tolerances, risking nuisance trips or — worse — delayed cutout that damages the compressor.
  • Install difficulty: 3/5 — Refrigerant circuit work requires an EPA 608 certified technician. Tools needed: manifold gauge set, 1/4" flare wrenches, multimeter for continuity verification. Always recover refrigerant before disconnecting the high-side switch. Low-side switch (HK02ZB038) is accessible via spade connectors; photograph wiring before disconnecting.
  • Warranty: 1-year OEM factory warranty on both switches. Orders placed by 3 PM local time ship same business day from our warehouse.

Compatibility: This kit is engineered specifically for the Carrier PH10JA048000ABAA heat pump. HK02ZA395 also replaces legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, and HK02ZA435. Verify refrigerant type and system model on your data plate before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork required.

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 PH10JA048000ABAA — HK02ZA395?
Yes. This is the factory-specified OEM pressure switch for the Carrier PH10JA048000ABAA — HK02ZA395. 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 PH10JA048000ABAA — HK02ZA395?
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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