OEM Carrier High Pressure Switch (HK02ZA395 / HK02ZB038) for Model PH10JA06000GABAA

This genuine OEM high pressure switch is the factory-specified replacement for the Carrier PH10JA06000GABAA heat pump system. The high pressure switch is a critical refrigerant-circuit safety device that monitors the high-side refrigerant pressure in the compressor circuit. When refrigerant pressure exceeds the rated trip point, the switch opens and cuts power to the compressor, preventing catastrophic compressor failure. Common failure symptoms include nuisance high-pressure lockout codes, the system shutting off shortly after startup on hot days, or a compressor that runs briefly then trips the pressure fault sequence.

• Specs: Opens at 406 PSI | Closes (resets) at 300 PSI | 1/8" NPT refrigerant port | 240 VAC rated (6A) | Sensata PS80 series platform | Alternate P/N: HK02ZB038 (22# CLS / 7# OPN low-side switch included in kit configurations)
• OEM vs Generic: Genuine Carrier OEM switches are factory-calibrated to exact trip-point tolerances. Aftermarket substitutes often carry wider pressure tolerances, risking either nuisance trips or — worse — insufficient compressor protection. Always use OEM for refrigerant-circuit safety devices.
• Install difficulty: 3/5 — Refrigerant-side pressure switch replacement requires recovering system refrigerant pressure before disconnecting. Tools needed: refrigerant manifold gauges, 1/8" NPT wrench, multimeter for continuity check, Teflon tape for port re-seal. Always de-energize the unit at the disconnect before beginning work.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.

Compatibility: Engineered as a direct OEM replacement for Carrier model PH10JA06000GABAA packaged heat pump units. Cross-references include legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, and HK02ZA435. Verify your unit's data plate and existing switch port size before ordering. Our technical team is available to confirm fitment — contact us before you order if you have any questions.