IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 0130F00038 Auxiliary Limit Switch (light blue) is a factory-original secondary overheat safety control for the Amana/Goodman AMEH800805DXAB gas furnace. This normally-closed switch adds a second layer of protection beyond the primary limit, opening the control circuit if a specific zone of the furnace exceeds its safe temperature — for example, due to a blocked heat exchanger passage or blower fault.
The light-blue color code identifies this switch's exact trip temperature. Installing a generic switch or the wrong color rating changes the trip point and can either nuisance-trip the furnace or fail to protect it. Because it is a safety component, matching the OEM calibration is essential.
Easy — 1 of 5. Disconnect power, unplug the spade terminals, remove the mounting screws, and install the replacement in the identical location and orientation. No specialty tools required. Test a full heat cycle after installation.