York S1-2790-3171 Fan Switch 321894-706 the AF4C15 is specifically wound

the AF4C15 is specifically wound for AC current as indicated by the 60Hz/50Hz specifications

000 hours under standard conditions

By preventing condensate backup

Designed with 70% fewer moving parts than reciprocating models

this assembly includes the 61145 pilot and internal electrodes

York S1-2790-3171 Fan Switch 321894-706 the AF4C15 is specifically woundThe York S1 2790 3171 Fan Switch is an essential OEM component designed for precise fan and limit control in residential heating systems. As an industrial grade furnace fan limit switch replacement, this part ensures optimal airflow by managing the blower activation cycle and providing critical high limit safety protection. This switch is the direct manufacturer specified equivalent for the F120 35F fan switch, engineered to maintain system integrity