Manitowoc Indigo Series Technician's Handbook page 142

Yes
Line voltage at wires
55 & 56 on 9 pin control
board connector?
No
Supply power to the
Yes
ice machine
Control board fuse
is good?
No
Replace fuse & determine which
component caused fuse to blow
Yes
(Multi evap all lights on?)
Refer to display & control
board diagnostics
Yes
Display light
flashing
heartbeat?
Yes
Bin switch light on?
No
Yes
Refer to display & control
No
board diagnostics
Install the water curtain/damper.
No
All water curtains or
dampers in place?
Yes