York 025-39956-001 High Pressure Switch (Auto Reset) Overview
The York 025-39956-001 is an OEM high pressure switch designed to protect York HVAC and refrigeration systems from dangerous over-pressurization conditions. Featuring an automatic reset function, this switch restores normal system operation once refrigerant pressure returns to a safe operating level — eliminating the need for manual intervention and reducing unnecessary service calls.
Key Features
- OEM York replacement part — engineered for precise fit and reliable performance in York equipment
- Automatic (auto) reset — resets automatically when system pressure normalizes, minimizing downtime
- Monitors high-side refrigerant pressure to prevent compressor and system damage from over-pressurization
- Durable construction built to withstand the demands of commercial and residential HVAC applications
- Direct drop-in replacement ensures straightforward installation with no modifications required
How It Works
The high pressure switch continuously monitors the refrigerant circuit’s high-side pressure. If pressure exceeds the switch’s set point, the switch opens the control circuit, shutting down the compressor to prevent equipment damage. Once pressure drops back within the safe operating range, the auto-reset mechanism closes the circuit and allows the system to resume normal operation.
Application
- Compatible with York residential and commercial HVAC systems
- Ideal for use in air conditioners, heat pumps, and refrigeration equipment utilizing York controls
- Recommended for use as a direct OEM replacement during routine maintenance or system repair
Why Choose the York 025-39956-001
Using genuine York OEM components ensures your equipment operates within factory specifications, preserving system warranties and maximizing equipment lifespan. The auto-reset design reduces service labor costs and keeps systems running with minimal interruption. Trust Jackson Systems for fast shipping and competitive pricing on this and all York replacement parts.








