OEM Carrier High Pressure Switch HK02ZA395 406/300 PSI for Model PY1PPB060090AAAA

This is the genuine OEM high pressure safety switch for the Carrier PY1PPB060090AAAA packaged unit. The high pressure switch monitors refrigerant pressure on the high side of the refrigerant circuit and cuts power to the compressor if pressure exceeds a safe threshold, protecting against compressor damage, refrigerant line rupture, and system failure. When this switch fails or trips permanently, you'll typically experience a system lockout, a no-cooling fault code, or repeated nuisance trips even when the refrigerant charge is correct. A failed or out-of-spec switch must be replaced — not bypassed.

• Specs: Opens at 406 PSI | Closes at 295 PSI | 6(6)A | 240 VAC | PMAX 41B | Manufactured by Sensata (PS80-03-0018) — factory-matched to Carrier tolerances
• OEM vs Generic: This is a genuine Carrier Factory Authorized Part. OEM switches are calibrated to exact cut-out/cut-in pressures. Aftermarket alternatives often carry wider pressure tolerances, risking either premature trips or — more dangerously — delayed shutoff that allows compressor damage.
• Install Difficulty: 3/5 — Refrigerant-side work. You must recover refrigerant before replacing a high pressure switch on a pressurized circuit. Tools needed: manifold gauge set, refrigerant recovery unit, adjustable wrench, wire stripper. Always tag and lock out power before beginning. A licensed HVAC technician is recommended for this repair.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier PY1PPB060090AAAA packaged unit. Also supersedes legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, HK02ZA501, 312926-225, 312926-226, and 312926-233. Always verify the PSI rating on your existing switch and equipment data plate before ordering. Our parts specialists are available to confirm fitment — order today and get it shipped fast.