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The Goodman 0130F00036 Limit Switch (Pink) is the genuine OEM high-limit safety control for the AMES920804CNAA furnace and compatible Goodman/Amana models. Mounted on the heat exchanger or plenum, it opens the circuit and shuts off the burners if the furnace overheats — protecting the heat exchanger from cracking and preventing a fire hazard. The pink color code identifies its factory temperature calibration; a nuisance-tripping or open limit switch is a frequent cause of no-heat and short-cycle faults.
The OEM Goodman 0130F00036 is calibrated to the exact open/close temperature the furnace was engineered around — matching the pink code. Because this is a safety-rated overheat control, we strongly recommend the genuine OEM switch rather than a substitute, which may trip at the wrong temperature.
Easy. Cut power, note the wire positions, remove two mounting screws, and swap. Always confirm the color code and part number match before installing — never bypass a limit switch. Test furnace operation after replacement.