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Protect your Amana AMVC800604BNAB furnace from overheating with the genuine Goodman 0130F00038 auxiliary limit switch. Identified by its light-blue trip-rating dot, this normally-closed thermal switch opens the control circuit if temperatures in the blower or burner area exceed the safe threshold, shutting the furnace down before heat damage or an unsafe condition can develop. A tripped or failed auxiliary limit is a common cause of no-heat and blower-runs-constantly complaints.
Limit switches are safety devices, and trip temperature is everything. Generic switches are frequently sold by physical size rather than exact trip rating — installing the wrong rating either nuisance-trips or, worse, fails to protect the equipment. This factory OEM switch carries the exact calibrated trip point (matched by the light-blue code) specified for your furnace.
A quick 10-15 minute job. Disconnect power, remove the two mounting screws securing the switch to the bracket or vestibule panel, transfer the spade connectors one at a time to avoid mixing them, and secure the new switch. Never bypass a limit switch — always replace with the correct OEM rating.