
38
FAULT
CAUSE
SOLUTION
RESTART PROCEDURE
The external controller
display shows the
message „NO LINK“
or
„I/O board 01 fault”
or
it doesn’t lit up at all
The chiller keeps running
and still responds to
commands received
through its digital inputs
and to remote control
through Ethernet
External controller
display cable
damaged or loose
connections
External controller
display damaged
Check that the cable connections
are tight at both ends and examine
the total length of the cable for
any damages. If the cable is
damaged contact authorized
technical service to replace it
Contact authorized technical
service
The chiller is still running
normally and it accepts
On/Off commands through
the 23/24 digital input. Other
settings and information
functions are still available
through the Ethernet
connection
Maintenance request
The chiller has
exceeded the working
hours defined
between preventive
maintenances
Contact authorized technical
service for a preventive
maintenance of the unit
It
’
s a warning only; the chiller is
still working normally. The
authorized technical service
will reset the warning during
the preventive maintenance