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The Goodman 0130F00038 Auxiliary Limit Switch is a genuine OEM high-temperature safety control engineered for the Goodman ACEC960403BNAB and compatible furnace/air handler platforms. This light-blue-coded limit interrupts the burner or heating circuit if the heat-exchanger or plenum temperature rises above its rated setpoint, protecting the equipment and the home from overheating. A failed or open auxiliary limit is one of the most common causes of nuisance lockouts and short cycling.
The genuine OEM 0130F00038 is calibrated to the exact trip temperature Goodman specifies for this furnace, ensuring correct safety operation. Aftermarket limits often carry generic setpoints that can trip early (false lockouts) or late (reduced protection). For a safety control, we recommend OEM.
Easy (2/5). Disconnect power, remove the two mounting screws, transfer the spade connectors, and reinstall. Most homeowners complete this in under 15 minutes. Always cut power at the breaker first.