A solid red light on a Bryant furnace control board typically indicates normal operation when the system is actively running a heating cycle without any active fault codes. On many modern Bryant control boards, a steady, uninterrupted glow signals that power is flowing correctly and the control center is functioning as intended, whereas flashing patterns usually denote specific errors like pressure switch failures or ignition lockouts. However, if the furnace fails to produce heat while showing a solid red light, it may indicate a locked-out control module or a tripped internal fuse requiring a soft system reset. Homeowners should consult the inner door panel diagram to confirm the exact status legend for their specific model number.
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