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The Goodman 10123532 is a genuine OEM manual reset high-limit switch engineered for the WGGE4360A140MAB gas furnace and compatible Goodman and Amana models. This safety control opens the burner circuit if the furnace overheats, protecting the heat exchanger and blower assembly from thermal damage. Because it is a manual reset device, it requires a physical button press to restore operation after a trip — a deliberate design that flags recurring overheat conditions for service.
This is a genuine OEM Goodman part built to the exact trip temperature and electrical rating specified for your furnace. Generic aftermarket limit switches may trip at incorrect setpoints, causing nuisance shutdowns or, worse, failing to protect the heat exchanger. For a safety-critical control, OEM is strongly recommended.
Moderate — Requires shutting off power and gas, removing the burner/limit access panel, and transferring wiring. Best performed by an HVAC technician; a confident DIYer with a multimeter can complete it in 20–30 minutes.