IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The genuine Goodman 0130F00038 Auxiliary Limit Switch (identified by its light blue cap) is a secondary safety control for the ACVM970603BNBA furnace and compatible Goodman/Amana models. It provides backup over-temperature protection in addition to the primary limit, opening the burner circuit if heat builds in its monitored zone — guarding against restricted airflow, blower failure, or heat-exchanger faults.
If your furnace trips on limit, fails to maintain a heating call, or repeatedly faults to lockout, a failed auxiliary limit may be the cause. Each Goodman limit is color-coded to its trip temperature, so matching the OEM part number is essential.
The OEM Goodman auxiliary limit is factory-calibrated to the exact trip point the color code represents and matches the original bracket and terminals. Generic substitutes risk an incorrect open temperature, leading to nuisance trips or inadequate protection. For a furnace safety device, always use the matching OEM part.
Easy (1/5). Two-screw bracket with spade connectors — a quick 10–15 minute replacement. Disconnect electrical power before servicing. When in doubt, consult a licensed HVAC technician.