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The Goodman 0130F00038 is a genuine OEM auxiliary limit switch (identified by its light-blue marking) for the Amana/Goodman AMEC800804BXAA gas furnace. This manual- or auto-reset safety control provides secondary overheat protection, opening the circuit and shutting down the furnace if temperatures exceed the switch's rated setpoint at its mounting location. The color code corresponds to a specific trip temperature, so matching the exact part is essential for correct operation.
The light-blue OEM switch is calibrated to the precise cutout temperature your furnace requires. Because auxiliary limits are color-keyed to their setpoint, substituting a differently rated generic switch risks nuisance trips or a failure to protect against a genuine overheat. OEM is strongly recommended for this safety device.
Easy. Mounts with one or two screws and connects via spade terminals after disconnecting power. A straightforward swap for a handy homeowner, though furnace operation should be confirmed afterward.