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A trip typically indicates a blocked heat exchanger
Using a switch with a different set point can lead to unsafe combustion or frequent short cycling of the heating system
Direct Cross Reference: Perfectly replaces legacy part number 1149252 without modifying wiring or brackets
Common Questions & Technical Support Is the TOOL-82 the same as the M231
York S1-7945-3551 Transformer A trip typically indicates aThe York S1 7945 3551 Transformer is a critical OEM replacement part designed for precision voltage regulation in York, Coleman, and Evcon HVAC systems. This 120V to 24V step down transformer features a 15VA power rating, providing a stable low voltage current to reach the control board, contactors, and thermostats. Built as a Class 2 transformer, it ensures proper isolation for the secondary circuit, protecting sensitive electronic components from