OEM Carrier High Pressure Switch 312926-252 for Model PH4ANG024000BCAA

This is the factory OEM high pressure switch for the Carrier PH4ANG024000BCAA heat pump/air conditioning system. The high pressure switch is a critical safety component that continuously monitors refrigerant pressure on the high side of the system. When refrigerant pressure exceeds safe operating limits, the switch trips to shut down the compressor — protecting it from catastrophic over-pressurization damage. Common failure symptoms include nuisance high-pressure lockouts, compressor short-cycling, or a system that trips out on hot days and won't restart without a manual reset.

• Specs: 670 PSI cutout / 470 PSI reset | OEM Part Number: 312926-252 | Genuine Carrier factory-authorized replacement component
• OEM vs Generic: This is a genuine OEM Carrier part with factory-calibrated pressure trip points. Aftermarket pressure switches can have drift tolerances that lead to nuisance trips or, worse, failure to trip — risking compressor burnout. OEM is always the recommended choice for safety-critical switches.
• Install difficulty: 3/5 — System refrigerant must be recovered before replacing a high-side pressure switch. Tools needed: manifold gauge set, torque wrench, refrigerant recovery equipment. Installation must be performed by an EPA 608-certified technician.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Direct OEM replacement for Carrier PH4ANG024000BCAA. Always verify the part number 312926-252 on your unit's data plate or wiring diagram before ordering. Need fitment confirmation? Our HVAC parts specialists are standing by — order with confidence and get same-day shipping on in-stock parts.