Manual

SC3/20 PROBLEMS: - Refer to this chart and the SC3/20 PROBLEM CASES (next
page) to help diagnose potential problems based on the
SC3/20 readings.
CASE BATTERY
VOLTAGE
READING
ARRAY
CURRENT
READING
YELLOW
CHARGING
LIGHT
GREEN
CHARGED
LIGHT
RED LOW
VOLTAGE
LIGHT
OTHER SC3/20
CASE
(Next Page)
#1 →
Display blank Display blank OFF OFF OFF Day See Case 1
#2→
Display blank Display blank OFF OFF OFF Night only See Case 2
#3 →
10-13 00.0 OFF Day See Case 3
#4 →
12.0-14.7 00.0 ON ON Day See Case 4
#5 →
13-14.7 00.0 ON OFF Day See Case 5
#6 →
14.7 - 22.0 ON See Case 6
#7 →
ON at night Night See Case 7
#8 →
ON ON See Case 8
#9 →
Reading
changing rapidly
Reading
changing
rapidly
May be
flashing
May be
flashing
Day See Case 9
#10 →
Voltage reading
erratic
See Case 10
#11 →
Voltage reading
higher than
actual battery
voltage
See Case 11
#12 →
Current less
than expected
ON OFF Day See Case 12
#13 →
Changes to
ON or OFF
Changes to
ON or OFF
Day - Front
fuse taken
out or
pushed
See Case 13
#14 →
Day -
SC3/20
buzzing
See Case 14
#15 →
SC3/20 hot See Case 15
#16 →
Position “C”
voltage
setting
drifts
See Case 16