OEM Carrier High & Low Pressure Switch Kit (HK02ZA395 / HK02ZB044) for Model PH2PEB060000AB

This OEM pressure switch kit contains both the high pressure switch (HK02ZA395) and the low pressure switch (HK02ZB044) — the factory-specified safety controls for the Carrier PH2PEB060000AB packaged heat pump unit. These switches continuously monitor refrigerant pressure in the system, opening the safety circuit if pressure rises dangerously high or drops critically low. A failed pressure switch typically results in the system locking out on startup, short-cycling within seconds, or displaying a pressure fault code on the control board. Because high and low pressure faults can share similar symptoms, replacing both switches as a matched OEM kit saves a return service call.

• Specs — High Pressure Switch (HK02ZA395): Opens at 395 PSI | Closes at 295 PSI | 1/8" NPT thread | 240 VAC | Sensata PS80 platform | Factory-matched safety thresholds
• Specs — Low Pressure Switch (HK02ZB044): Opens at 7 PSI | Closes at 22 PSI | 24V | 50" lead wire | OEM Carrier RCD manufactured in Mexico
• OEM vs Generic: OEM Carrier pressure switches are calibrated to exact factory cut-in and cut-out tolerances. Aftermarket switches frequently carry ±10–15% PSI variance, which can trigger nuisance lockouts or — more dangerously — fail to protect the compressor from an actual over-pressure event, voiding your equipment warranty.
• Install difficulty: 2/5 — Recover refrigerant charge before disconnecting high-side switch (EPA 608 required). Low-side switch replacement is straightforward with the system off. Tools needed: refrigerant recovery unit (high-side), 1" open-end wrench, needle-nose pliers, multimeter for continuity verification. Always photograph wiring before disconnecting.
• Warranty: 1-year OEM factory warranty on both switches. Ships same business day from our warehouse in original Carrier factory packaging.

Compatibility: Engineered as direct OEM replacements for Carrier model PH2PEB060000AB packaged heat pump systems. Verify refrigerant circuit symptoms and fault codes before ordering to confirm which switch — or both — requires replacement. Our team is available to confirm fitment before you buy. Order by 3 PM and your parts ship today.