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The Goodman 0130F00038 is a genuine OEM auxiliary limit switch — identified by its light-blue body — designed for the AMES960805CNAA gas furnace and compatible Goodman/Amana equipment. This secondary thermal safety monitors temperature in the blower or burner compartment and opens the control circuit if it detects an over-temperature condition, backing up the primary limit and protecting against airflow blockage or flame rollout.
The color coding on the OEM 0130F00038 corresponds to a specific factory-calibrated trip temperature. Substituting a generic switch with the wrong rating can either nuisance-trip the furnace or fail to protect it. For a safety device, matching the exact OEM specification is essential.
Easy (1/5). Two mounting screws and push-on spade terminals; roughly a 10-minute replacement. Disconnect power before servicing. Confirm the light-blue rating matches your original switch, and address any airflow restriction that may have caused the trip.