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or the burner shutting off shortly after ignition
By using an authentic York replacement part
such as the 12A09 or 12A39
usually removing the requirement for downstream venting
Q: What does the 0130M00075SP low pressure switch do
Trane SWT1271 Limit Switch or the burner shutting offThe Trane SWT1271 is a critical furnace high limit switch designed for HVAC system diagnostics and thermal protection. As a standard OEM replacement part, this auto reset limit switch prevents the heat exchanger from reaching a hazardous open temperature of 180F, cutting off power to the gas valve until the unit cools to its 150F reset point. For technicians troubleshooting furnace short cycling or 4 flash error codes on a Trane or American Standard
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