OEM Carrier High & Low Pressure Switch for Model CH13NA02500GABBA

These OEM pressure switches — 312926-252 (High Pressure Switch) and 312926-258 (Low Pressure Switch) — are the factory-specified replacements for the Carrier CH13NA02500GABBA condenser unit. Pressure switches monitor refrigerant pressure on both the high and low sides of the refrigerant circuit, protecting the compressor from operating outside safe pressure limits. When either switch fails or trips, the system will lock out, refuse to start, or shut down immediately after attempting to run — often triggering a fault code on the control board.

• Specs: 312926-252 — High Side Pressure Switch | 312926-258 — Low Side Pressure Switch | Factory-calibrated trip points matched to R-410A operating pressures | Spade terminal connections for direct OEM harness plug-in
• OEM vs Generic: OEM pressure switches are calibrated to exact factory trip thresholds. Aftermarket substitutes often carry wider pressure tolerances, risking compressor damage from under- or over-pressure conditions that go undetected.
• Install difficulty: 3/5 — Refrigerant recovery is required before replacing pressure switches on a live system. Tools needed: manifold gauge set, adjustable wrench, multimeter for continuity verification. Always recover refrigerant per EPA Section 608 regulations before disconnecting any refrigerant-side fittings.
• Warranty: 1-year OEM factory warranty on both switches. Orders placed before cutoff ship the same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier CH13NA02500GABBA split-system condenser. Confirm high-side vs. low-side placement on your unit before ordering — part numbers 312926-252 and 312926-258 are not interchangeable. Check your existing switch label or wiring diagram inside the access panel to identify which switch requires replacement. In stock and ready to ship — order today and get your system back online fast.