Lamar Technologies Alpha C-25 - Manual (Page 18)

6. SPECIFICATIONS
ALPHA C-25 Manual V2.1.doc Page 18
5. TROUBLESHOOTING
Problem Possible Cause Corrective Action
A. Unit will not
turn on
The AC power is not
connected to unit Check AC line with voltmeter
AC line fuse is blown. May be
due to incorrect AC line
voltage setting. Ensure correct AC line voltage
setting on back of unit. (see section
2.1)
Replace AC line fuse located on the
lower right hand side on the rear of
the unit (see section 4.6)
B. Unit turns on
but will not start
(timing)
Timer is set to zero time, Increase the timer setting (see
section 3.4)
C. No or very low
charge current
The lead-acid battery is
sulfated and will not support a
load Recondition or discard the battery
High resistance or open
circuit in DC cable at quick
disconnect, in the cable itself Inspect and measure resistance in
DC cable and connector. If high or
intermittent high resistance, the
cable needs to be replaced
The lead-acid battery is
sulfated.
Recondition the battery.
The nickel-cadmium battery
inter-cell connectors are loose
or contaminated causing high
resistance Check all terminals and inter-cell
connectors. Set a low discharge
current and look for arcing or heat
generation.
D. Timer setting
cannot be
changed
Timer setting is locked. Push timer’s “Lock” button.