Same-day shipping before 3PM CST · 35,000+ OEM Parts · Texas CMBL & SAM.gov Registered · Government POs Accepted

Menu

Home Shop All Account Cart
OEM Carrier High Pressure Switch 448/327 PSI for PY1REA060115AAWB
Carrier

OEM Carrier High Pressure Switch 448/327 PSI for PY1REA060115AAWB

SKU: CARRIE-PY1REA060115AAWB-PRESSURE_SWITCH-HK02ZA442 Brand: Carrier
✓ Guaranteed to fit PY1REA060115AAWB — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier High Pressure Switch 448/327 PSI for Model PY1REA060115AAWB

This factory OEM high pressure switch is the direct-replacement safety control for the Carrier PY1REA060115AAWB packaged unit. The switch continuously monitors refrigerant system pressure on the high side and opens the control circuit when pressure exceeds the factory-set trip point, protecting the compressor from damage caused by overcharge, refrigerant restriction, or inadequate condenser airflow. When it fails or trips and will not reset, the system locks out on a high-pressure fault — often presenting as no cooling, a compressor that short-cycles, or a control board fault code indicating a high-pressure safety trip.

  • OEM Part Numbers: HK02ZA442 (High Pressure Switch) | HK02ZB044 (Pressure Switch) — both are factory-authorized replacements for this model
  • Specs: 448 PSI opening pressure | 327 PSI closing pressure | Factory-matched trip/reset points | Watertight one-piece housing rated for indoor and outdoor installation
  • OEM vs Generic: OEM switches use factory-calibrated trip points (±2% tolerance). Off-brand substitutes often carry wider tolerances, risking nuisance trips or, worse, allowing over-pressure conditions that damage the compressor — a repair that costs 10× more than this switch.
  • Install Difficulty: 3/5 — System must be recovered and depressurized before replacement on the high-pressure circuit. Tools needed: manifold gauge set, refrigerant recovery equipment, adjustable wrench, and a multimeter to verify continuity after installation. Always follow lockout/tagout procedures.
  • Warranty: 1-year OEM factory warranty. In-stock — ships same business day from our warehouse.

Compatibility: Engineered and factory-spec'd for the Carrier PY1REA060115AAWB packaged unit. Cross-references OEM part numbers HK02ZA442 and HK02ZB044. Verify your unit's data plate refrigerant type and confirm the high-side pressure switch location before ordering. Our HVAC parts specialists are available to verify fitment — reach out before you order if you have any questions.

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 PY1REA060115AAWB?
Yes. This is the factory-specified OEM pressure switch for the Carrier PY1REA060115AAWB. 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 PY1REA060115AAWB?
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.
Home Shop Search Account Cart
Fitment Guaranteed
MR
Mike Rivera
HVAC Parts Specialist — Online