Trane THT0485 Limit Switch 318423-701 Installation is streamlined via 1/8"

Installation is streamlined via 1/8" NPT connections for both the gas inlet and vent

protecting sensitive electronic controls and preventing fastener loosening

and differential readings

that is a classic symptom of a dirty or defective flame sensor failing to send a signal back to the board after ignition

Trane THT0485 Limit Switch 318423-701 Installation is streamlined via 1/8"The Trane THT0485 Limit Switch is a critical fixed temperature safety component engineered for precise thermal monitoring within HVAC furnace gas fired heating assemblies. Operating on a 115 140F temperature range, this automatic reset limit switch serves as a primary high limit safety control, monitoring heat exchanger temperatures to prevent thermal runaway. Designed specifically for Trane and American Standard residential furnaces, the THT0485