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The Goodman/Amana 0130F00038 is the OEM auxiliary limit switch — identified by its light blue temperature-rating cap — for the AMEC800804BNAA gas furnace and compatible Goodman/Amana models. This secondary safety control monitors temperature at a critical location (such as the blower deck or burner box) and opens the circuit to shut down the furnace if it detects an overheat or flame-rollout condition. It backs up the primary limit, adding an essential layer of protection against heat-exchanger damage and unsafe operation.
The color code on the OEM 0130F00038 denotes its exact trip temperature — installing a switch with a different rating defeats the safety design. Generic limits are easy to mis-match by temperature or terminal style, causing nuisance trips or, worse, failing to open when they should. Match the OEM part and color exactly.
Rated Easy. Disconnect power, note wire positions, remove the mounting screws, and swap in the identical replacement. Confirm the light-blue rating matches your original before wiring. Test heating operation and verify the safety trips clear correctly.
Compatibility: AMEC800804BNAA. If unsure, send us your model, serial number, and the color of your existing switch to confirm the correct rating.