OEM Carrier High & Low Pressure Switch Kit for Model PH14NA060000BAAA (312926-252 & 312926-258)

These OEM refrigerant pressure switches are the factory-specified replacements for the Carrier PH14NA060000BAAA heat pump. The high pressure switch (312926-252, 670-470# cut-out/cut-in) protects the compressor from dangerously elevated refrigerant pressure, while the low pressure switch (312926-258, 55-23# cut-out/cut-in) guards against loss-of-charge and low-suction conditions. When either switch fails or trips on a fault, the system will lock out, short-cycle, or refuse to start — and fault codes will typically point to a refrigerant pressure or compressor protection error.

• Specs — High Pressure Switch (312926-252): 670 PSI cut-out | 470 PSI cut-in | Normally closed | SPST | Factory-matched OEM tolerances for R-410A systems
• Specs — Low Pressure Switch (312926-258): 55 PSI cut-out | 23 PSI cut-in | Normally closed | SPST | Prevents compressor damage from low refrigerant charge
• OEM vs Generic: OEM Carrier pressure switches are calibrated to exact factory setpoints. Generic aftermarket switches routinely ship with ±10–15% pressure tolerances, risking nuisance trips or — worse — failing to protect the compressor at true fault conditions. Only OEM guarantees the setpoint your system was designed around.
• Install difficulty: 3/5 — Refrigerant system work requires an EPA 608 certification. Recover refrigerant before accessing the refrigerant circuit. Tools needed: manifold gauge set, refrigerant recovery machine, torque wrench, and leak detector. Always verify system pressures after replacement and before restart.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our stocked warehouse.

Compatibility: Engineered as direct OEM replacements for Carrier PH14NA060000BAAA 14 SEER R-410A heat pump condensers. Confirm refrigerant type and pressure switch setpoints on your unit's data plate before ordering. Our technical team is available to verify fitment before you buy — order with confidence and get your system back online fast.