Amana Furnace Error Code Continuous Light

The Continuous Light fault code on an Amana furnace indicates an internal failure within the integrated ignition control module. Unlike fault codes that represent sensor or wiring issues elsewhere in the system, this condition originates inside the control board itself. The integrated ignition control manages the entire heating sequence, including draft inducer operation, igniter timing, gas valve activation, and flame sensing. When the board detects an internal fault it cannot recover from, it enters a hard lockout state and signals this by illuminating the diagnostic LED continuously without any blinking pattern.

This lockout condition is a self-diagnostic response built into the control module. The board monitors its own internal logic and circuitry, and when it detects a failure in those circuits, it halts all furnace operations to prevent unsafe or unpredictable behavior. Because the fault is internal to the control board rather than in an external component such as a pressure switch, limit switch, or flame sensor, standard circuit testing of the surrounding wiring and components will not identify a root cause or resolve the condition.

The continuous light indication differs from blinking flash codes because it does not correspond to any external sensor or switch failure. Power cycling the furnace may temporarily clear the lockout, but the internal fault will typically cause the board to re-enter the locked-out state during or after the next heating cycle. The corrective action is replacement of the integrated ignition control module, as the internal fault is not field-repairable.