Carrier 338096-702 Limit Switch 319852-301 Replacing a single-stage valve with

Replacing a single-stage valve with a 2-stage unit without upgrading the control system will cause ignition failure

It requires a compatible control board and wiring harness designed for programmable motor communication

technicians can resolve intermittent "no-start" conditions and ensure reliable system firing once the panels are secured

Enhanced Durability: Features an ASTM A-313 TY 631 stainless steel spring and corrosion-resistant bronze trim for long-term reliability in harsh boiler environments

Carrier 338096-702 Limit Switch 319852-301 Replacing a single-stage valve withThe Carrier 338096 702 Limit Switch is a critical high limit safety component designed specifically for Carrier, Bryant, and Payne heating systems. As a genuine OEM replacement part, this L170 20F limit switch is engineered to monitor heat exchanger temperatures, effectively preventing overheating conditions by interrupting the electrical circuit when the internal temperature exceeds 170F. This specific model features an automatic reset mechanism that