Lochinvar & A.O. Smith 100208407 Switch Els PW 29614 Common signs include the furnace

Common signs include the furnace failing to ignite despite the inducer motor running

moisture in the sensing lines

Utilizing snap-acting

Optimized Timings: Set with a 0

Lochinvar & A.O. Smith 100208407 Switch Els PW 29614 Common signs include the furnaceThe Lochinvar & A. O. Smith 100208407 Blocked Flue Switch is a critical safety component designed for high efficiency condensing boilers and water heaters. As a factory authorized replacement for PRS2708 and PRS2708K, this blocked flue pressure switch is calibrated to a specific 55" WC set point to detect dangerous venting restrictions. When flue gases cannot exit the heat exchanger due to obstructions like bird nests, ice, or excessive condensate