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Page
54
of
76 MICRO-0.25/0.3-I-OUTD-US-208-240 BCG.00612_AB
Part
5 Troubleshooting Guide
Alarm
Messages
Code
displayed
Cause Solution
Vbulk UV W011
Internal fault of the booster circuit inverter Contact Power-One Service.
Comm
warning W025
The alarm is generated when the CDD
device does not receive messages from the
MICRO inverter for more than 5 minutes.
This may be caused by non-optimal
positioning of the CDD. Consider a new installation position that
ensures better communication between the
CDD device and the MICRO inverters. Use
the CDD Internal Web Server to verify the
signal quality (refer to the CDD manual for
information on the Internal Web Server)
Comm
fault W005
The alarm is generated when the CDD
device does not receive messages from the
MICRO inverter for more than 15 minutes.
This may be caused by non-optimal
positioning of the CDD. Consider a new installation position that
ensures better communication between the
CDD device and the MICRO inverters. Use
the CDD Internal Web Server to verify the
signal quality (refer to the CDD manual for
information on the Internal Web Server)
Remote
Off E035
The alarm is generated when an external
shutdown command has been sent to the
MICRO inverter. Disable the Remote Off command.