BCDi320 Manual
1918
Troubleshooting
The BCDi320 is designed to provide years of reliable service and to auto-recover in the event 
of an operational failure. In the event of malfunction, the unit is tted with eight LED indica-
tors and an audible alarm to help diagnose the cause of the issue. Below is a list of potential 
issues, and how to repair them. 
NO DC POWER DETECTED
I/P
POL
TEMP
25
DEV
CH
75
SVC
FLT
LO V
BAT
50
EQ
PS
No Input Power Detected 
The charger is not detecting any Input power. Using a 
multimeter, check that the power source is working. 
Check that the input fuse hasn’t blown. If the fuse is open, 
replace it with the recommended fuse listed on the label 
and reconnect to power. If the I/P LED still does not glow, 
then there is likely an internal failure and the charger will 
have to be returned for service.
Low Input Voltage Indication
The charger has detected that the input voltage has 
dropped below the minimum level needed for normal 
operation. The charger will shut off and wait for the 
voltage to recover. 
BATTERY OVERTEMP
I/P
POL
TEMP
25
DEV
CH
75
SVC
FLT
LO V
BAT
50
EQ
PS
CHARGER LO VOLTAGE
I/P
POL
TEMP
25
DEV
CH
75
SVC
FLT
LO V
BAT
50
EQ
PS
CHARGER OVERTEMP
I/P
POL
TEMP
25
DEV
CH
75
SVC
FLT
LO V
BAT
50
EQ
PS
Charger Over Temperature Indication
The charger has detected that its internal temperature 
is above safe operating limits. The charger will shut 
off until the temperature has returned to normal limits. 
If this happens frequently, the charger may need to be 
remounted for better air circulation.
Battery Over Temperature Indication
The charger has detected that the battery is too hot to 
safely charge (>43°C/110°F) and shut off. The charger 
will automatically reconnect when the battery cools to a 
safe temperature (<32°C/90°F). If this happens frequently, 
particularly in relatively normal ambient temperatures, 
the battery is likely damaged or defective and should be 
replaced.
FAULT INDICATORS
BLINKING










