or produces an audible "chattering" sound from the control cabinet

This is an OEM start relay designed for specific Trane circuit configurations

as well as V5011F and G Series threaded linear valves

As a direct OEM York replacement part

including the BAC-1 series

Amana-Goodman B1256553 Sequencer/Relay or produces an audible "chattering"Professional grade Amana Goodman B1256553 Sequencer Relay is a critical OEM replacement part designed for timed staging in electric furnaces and air handlers. This multi stage heat sequencer manages the precise activation of 12kW to 15kW heating elements, preventing simultaneous high amp draws that can trip breakers. As an authentic Goodman sequencer, it ensures proper blower motor delay, allowing the heat exchanger to reach temperature before air