OEM Carrier High & Low Pressure Switch for Model CH13NA01900GABAA

This OEM pressure switch kit includes both the high pressure switch (312926-252) and low pressure switch (312926-258) factory-specified for the Carrier CH13NA01900GABAA split-system condenser. Pressure switches are safety devices that monitor refrigerant pressure on both the high and low sides of the refrigerant circuit. When either switch detects an out-of-range pressure condition — caused by low refrigerant, a blocked condenser coil, or a faulty compressor — it opens the control circuit and shuts the system down to prevent compressor damage. Common failure symptoms include the system locking out on startup, the compressor cutting off prematurely, or fault codes indicating a pressure trip on your thermostat or control board.

• Specs: High Pressure Switch — OEM Part 312926-252 | Low Pressure Switch — OEM Part 312926-258 | Factory-calibrated cut-out and cut-in pressure ratings | Spade terminal connections | Designed for R-410A refrigerant systems
• OEM vs Generic: OEM pressure switches are factory-calibrated to exact cut-out and cut-in pressure thresholds for the CH13NA01900GABAA. Generic alternatives frequently drift out of spec, leading to nuisance trips or, worse, missed fault conditions that allow compressor damage to occur.
• Install difficulty: 3/5 — Refrigerant must be recovered before replacing pressure switches on the high-side port. Tools needed: refrigerant recovery machine, manifold gauge set, adjustable wrench, multimeter, and Schrader valve core tool. Low-side switch replacement is more accessible but still requires system depressurization. Always verify the system is de-energized before beginning work.
• Warranty: 1-year OEM factory warranty on both switches. Order ships same business day from our warehouse when placed before 3 PM local time.

Compatibility: These pressure switches are the factory OEM replacement for the Carrier CH13NA01900GABAA split-system condenser. Verify your existing switch part numbers (312926-252 and/or 312926-258) against your unit's wiring diagram before ordering. If you only need one switch, our team can confirm individual part fitment — contact us before purchasing. In stock and ready to ship today.