utilizing genuine Carrier HVAC parts ensures exact fitment and helps maintain the design-specified efficiency of the equipment

The LED flashes correspond to specific HVAC troubleshooting codes

and damage to electronic circuits

the controller will default to a user-selectable "on" or "off" state to protect the system

Lennox 86M36 Pressure Switch 340155-7026 utilizing genuine Carrier HVAC partsThe Lennox 86M36 High Pressure Switch is an essential OEM safety component designed for precise refrigerant monitoring in residential and commercial HVACR systems. As a normally closed (N. C.) switch, this unit provides critical compressor protection by initiating a system cut out when discharge pressures exceed 590 PSIG. Engineered for high stakes environments, the 86M36 features an automatic reset that restores circuit continuity once the pressure