Troubleshooting - Samlexpower SEC-1260A Owner's Manual

TROUBLESHOOTING

The symptoms of abnormal operation and the possible cause(s) and remedies are given in the
succeeding paragraphs.
There is no output. The AC power on / off switch (9) does not illuminate when
switched on. The charging indicator LED (4) is off (On the Remote Panel (15), the
Green LED under "Power" is off).
a) There is no AC input voltage in the outlet: Check that AC power is available in the AC
outlet receptacle and that it is switched on.
b) The AC input side fuse is blown due to:
•
High input voltage - Check that the input voltage is 120 VAC nominal (normal
range is 110 to 125 VAC).
•
High voltage transients / surges in the AC input line – Ensure that the AC input
voltage is clean and does not have high voltage transients / surges. Input voltage
surges / transients > 170 VAC (for 120 VAC input) or 340 VAC (for 230 VAC
input) will blow the AC side fuse. Use a suitable AC line conditioner / surge
suppressor, if necessary.
•
The unit has become defective – If fuse is not blowing due to the above two causes,
the unit has become defective. Call Technical Support of assistance.
There is no output voltage and the Charging Indicator LED (4) is red (On the Remote
Panel (15), the Red LED under "I Phase" is lighted, the Green LED under "Power" is
lighted).
a) The DC side output fuse is blown The DC side fuse will blow if the battery is connected
in wrong polarity. Ensure that the Positive battery post is connected to the Positive connec-
tor of the charger (either Bank 1 or Bank 2) and the Negative battery post is connected to the
Negative connector (common) of the charger. Replace the fuse with the fuse with the proper
rating.
b) The battery / DC load is shorted. Check and remove the short circuit. The charger will
latch in the off condition if it was shut down due to short circuit and will NOT re-set
automatically. To re-set, switch off the AC power input on / off switch (9) and switch on
again.
c) Shut down due to high temperature. Check that the cooling fan is working, the air vents are
not clogged and the ambient temperature is not very high. The charger will be latched in this
shut down condition and will NOT reset automatically even after the unit has cooled
down. To reset, the AC input power on / off (9) switch has to be switched off and on
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again.