OEM Carrier High Pressure Switch HK02ZA395 for Model PY1PJB048090ABAA

This is the genuine OEM high pressure safety switch for the Carrier PY1PJB048090ABAA packaged unit. The high pressure switch monitors refrigerant pressure on the high side of the refrigeration circuit and opens the safety circuit when pressure exceeds the factory setpoint — shutting down the compressor before damaging levels are reached. A failed or weak pressure switch typically causes nuisance high-pressure lockouts, compressor fault codes, or a system that trips on a warm day even with proper refrigerant charge. Always verify the pressure switch before condemning a compressor.

• Specs: Opens at 395 PSI | Closes at 295 PSI | 1/8" NPT thread connection | Sensata PS80-03-0018 platform | 240 VAC rated | SPST normally closed
• OEM vs Generic: This is the genuine Carrier factory part — not an aftermarket substitute. OEM switches are calibrated to exact cutout/cut-in pressures. Generic alternatives may drift ±10–15 PSI over time, risking compressor overload or nuisance trips.
• Install difficulty: 2/5 — Recover refrigerant charge before removal per EPA Section 608. Tools needed: refrigerant recovery machine, manifold gauges, adjustable wrench, thread sealant. Confirm system is de-energized before disconnecting wiring. Photograph wiring before removal.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier model PY1PJB048090ABAA. Also supersedes legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Always verify thread size and PSI setpoints on your unit's data plate before ordering. Our fitment team is available to confirm compatibility before you buy.