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 for the VMS80403ANAA gas furnace. It backs up the primary limit by monitoring temperature at a specific point — such as the blower compartment or burner box — and interrupts the heating circuit if that zone exceeds its safe threshold. The blue color code indicates its factory trip temperature, so matching the exact part is essential.
Limit switches are color-coded to their trip point for a reason. This genuine Goodman OEM switch guarantees the correct temperature calibration and mount. A generic switch with the wrong rating can nuisance-trip or fail to protect the furnace. For any safety limit, we strongly recommend the exact OEM part.
Easy (2/5). A quick swap for confident DIYers. Disconnect power to the furnace before servicing. Remove the mounting screws, transfer the two wire leads, and secure the new switch. Confirm the replacement matches the light-blue rating of the original. If the switch tripped repeatedly, have a technician check airflow and heat exchanger condition.