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The Goodman 0130F00036 Limit Switch (Pink) is a genuine OEM high-temperature safety control for the ADSH800403AXAA furnace. The pink color code identifies its specific factory trip temperature. This auto-reset limit monitors supply-air temperature near the heat exchanger and de-energizes the gas valve if the furnace overheats — typically from restricted airflow such as a dirty filter or failing blower.
Limit switches are color-coded to a precise trip temperature. Installing the matching OEM pink switch guarantees the correct overheat cutoff for your furnace. A generic or wrong-color switch may trip early (nuisance shutdowns) or too late (unsafe operation). Always match the color code.
Easy (2/5). Two spade terminals and a couple of mounting screws. Power off before servicing. If the old switch was tripping, correct the airflow restriction before returning the furnace to service.