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The Goodman 0130F00038 Auxiliary Limit Switch (light blue) is a genuine OEM safety control engineered for the AMVM971005CNAA modulating gas furnace and compatible Goodman/Amana models. This normally-closed thermal switch continuously monitors temperature in the heat exchanger and blower compartment, opening the circuit to shut down the burners if an overheat condition is detected. It is a primary safety component — a failed or out-of-spec limit switch is a common cause of intermittent no-heat and short-cycling calls.
This is a genuine OEM Goodman part, calibrated to the exact trip and reset temperatures the AMVM97 control board expects. Generic universal limits may not match the factory setpoint, which can cause nuisance lockouts or delayed shutoff. For a life-safety component we recommend OEM.
Easy (1/5). Two mounting screws and two spade terminals. Always shut off power and gas before servicing. If unsure, contact a licensed HVAC technician.
Backed by exact-fit compatibility and fast shipping from NationalHVACParts.com.