OEM Carrier High Pressure Switch 312926-252 for Model PH4ANG060000BCAA

This OEM high pressure switch is the factory-specified replacement for the Carrier PH4ANG060000BCAA packaged heat pump unit. The high pressure switch monitors refrigerant pressure on the discharge side of the compressor and opens the circuit when pressure exceeds safe operating limits — protecting the compressor from catastrophic failure. When this switch fails or trips repeatedly, the system will enter a lockout condition, producing no cooling or heating and often triggering a fault code on the control board.

• Specs: OEM Part# 312926-252 | High-side pressure switch | Factory-calibrated cut-out and cut-in set points | Matches original wiring connector and mounting footprint exactly
• OEM vs Generic: This is a genuine Carrier OEM part, manufactured to exact factory pressure thresholds. Aftermarket switches often use loose-tolerance set points that can allow unsafe pressure excursions, shorten compressor life, or nuisance-trip under normal operating conditions.
• Install Difficulty: 3/5 — Refrigerant circuit must be properly isolated before replacement. Tools needed: manifold gauge set, adjustable wrench, 1/4" nut driver, multimeter. EPA Section 608 certification required to handle refrigerant. Always recover refrigerant per local regulations.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM fit for the Carrier PH4ANG060000BCAA 5-ton packaged heat pump. Always verify your unit's model and data plate specifications before ordering. Our fitment team is available to confirm compatibility before you purchase — order with confidence.