97-0019-01-01 97
Troubleshooting
F69 External Sync
Failed
Automatic When Series
stacking— the
Stacking cable is not
installed.
Install the Stacking cable to connect
the two inverter/chargers.
F70 Unique Dev#
Needed
Automatic When stacking (Series
or Parallel)—if two
units have the same
Device Number.
Change the Device Number of one
unit. See “Setting the Device Number”
on page 71.
F71 Too Many
Masters
Automatic When stacking (Series
or Parallel)—if two
units are configured as
Master units.
Change one unit to a Slave unit. See
Stack Mode under “Stacking
Configuration Menu” on page 68 in
Table 17.
F73 Transformer
Temp
unreadable
Automatic Temperature sensor is
damaged.
Service required.
Table 3 Detected Fault Messages
Fault
Number Message Fault Type Cause Solution
FSW Owners Guide.book Page 97 Tuesday, August 7, 2018 9:03 AM
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