Sc3/20 problems – Specialty Concepts SC3/20 User Manual
Page 19

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