IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The Goodman 0130F00038 Auxiliary Limit Switch is a genuine OEM high-limit safety control designed as a direct-fit replacement for the Goodman GDH80403AXBC gas furnace. Identified by its light-blue housing, this switch continuously monitors heat-exchanger and plenum temperatures and opens the ignition circuit if the furnace overheats — protecting your equipment and home from unsafe operating conditions.
Over time, thermal cycling can cause a limit switch to trip prematurely, fail to reset, or stay open, resulting in short-cycling, no-heat calls, or a furnace that locks out on limit. Installing the correct OEM switch restores factory safety response and eliminates guesswork on trip temperatures.
Our OEM Goodman switch is calibrated to the exact trip and reset temperatures specified for your furnace. Generic aftermarket limits may carry different setpoints that cause nuisance trips or, worse, delayed shutdown. For a safety-critical control, we recommend the OEM part.
Easy (1/5). Two mounting screws and two spade terminals. Always shut off power and gas at the furnace before servicing. Most DIYers complete this replacement in under 15 minutes.