A combustion analysis showing elevated CO levels is a primary indicator that the internal cells have likely failed

Featuring a rugged brass body and reliable NBR seals

This 240°F Limit Switch acts as a primary fail-safe

Repeated thermal cycling and carbon buildup on the tip are the primary causes

repeating the sequence until the appliance lights or the call for heat is removed

York 331-02550-401 Control 340793-762 A combustion analysis showing elevatedThe York 331 02550 401 Global Scroll I O Control is a critical OEM replacement part designed for high performance management within scroll compressor HVAC systems. This microprocessor control board serves as the primary interface for processing complex input output signals, ensuring precise communication between the chiller control panel and mechanical hardware. For technicians servicing York YCAL or YCUL units, this board is essential for maintaining