The Italsea CFBR6011 is a functional controller board used in scrubber or sweep‑scrubber machines, providing drive and monitoring functions for the motor and associated pneumatic/air systems. Common failure points on this class of industrial control units include power supply voltage spikes damaging the main regulator IC, degradation of input/output relays or contactors, and corrosion or shorting on the PCB trace layout due to humidity exposure. First‑check diagnostics: verify that the unit receives its rated input voltage (24–48 VDC) with no ripple; inspect all I/O connectors for loose pins, burnt pads, or signs of arcing; examine the board under magnification for cracked solder joints or broken traces, and review any stored error codes or diagnostic LEDs to pinpoint a specific subsystem fault.[oss-gpt-20b]