IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 0130F00038 Auxiliary Limit Switch (identified by its light-blue body) is a genuine OEM secondary safety control that guards against overheating in a specific zone of the furnace cabinet. As a direct-fit replacement for the AMVC800603BNAA, it opens the control circuit if temperatures exceed its factory set point, preventing heat-exchanger damage and unsafe operation.
Auxiliary limits are color-coded to a precise trip temperature. The genuine OEM 0130F00038 guarantees you get the exact light-blue rating your furnace was engineered for. Substituting a switch with the wrong set point can cause nuisance shutdowns or bypass a needed safety margin, so match the OEM color code exactly.
Easy (1/5). Usually a two-screw, two-wire replacement. Disconnect power at the furnace before servicing and confirm the light-blue color matches the switch you removed. If the original was a different color, verify the correct part before installing.