Filter
Top Products
78 Freedom SW Owner’s Guide
Troubleshooting
F64 AC overload Escalating Auto Fault.
Must occur 3 times in 60
seconds before becoming a
manual fault.
Persistent excessive
inverter current above rated
current.
Avoid loads with long surge current.
F68 Transformer Over
Temperature
Automatic Same as F57. Same as F57.
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
59.
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 57 in Table 17.
F73 Transformer Temp
unreadable
Automatic Temperature sensor is
damaged.
Service required.
F74 Other Unit Invert
Fault
Automatic When stacking (Series or
Parallel)—if one of the
units encounters a fault that
needs to be resolved.
Clear the primary fault on the unit that
caused this fault.
Table 3
Detected Fault Messages
Fault
Number Message Fault Type Cause Solution
Freedom SW 3K2K InvChg Owners Guide.book Page 78 Thursday, July 31, 2014 1:42 PM