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The Goodman 0130F00036 Limit Switch (Pink) is a genuine OEM safety control for the AMH81005CNAA gas furnace and compatible Goodman/Amana models. This high-limit switch monitors heat-exchanger temperature and opens the circuit to shut off the burners if the furnace overheats — protecting against restricted airflow, a failed blower, or a dirty filter. The color code (pink) identifies its specific temperature trip rating, so matching the exact OEM part is essential for safe operation.
Because the pink color designates a precise trip temperature, using a generic or wrong-rated switch can defeat overheat protection or cause nuisance shutdowns. For a safety-critical control, always match the exact OEM part number and color code.
Easy — mounts with two screws and two spade terminals. Disconnect power before servicing. If the switch tripped, diagnose the underlying airflow issue before returning the furnace to service.