White Rodgers 1E78-140 Thermostat specifically within Intertherm

specifically within Intertherm

A faulty limit switch often results in the furnace blower running constantly or the burners shutting down prematurely (short cycling)

Why did my original blower relay melt

if the error is caused by incorrect venting backpressure

White Rodgers 1E78-140 Thermostat specifically within InterthermThe White Rodgers 1E78 140 Thermostat provides a rugged, field proven solution for single stage heat only systems. Operating on 24V low voltage or millivolt systems, this vertical non programmable unit is the preferred choice for technicians replacing older mechanical mercury thermostats in residential or light commercial applications. Its digital LCD backlit display offers high contrast visibility, ensuring accurate temperature readings within a 1