Samlex America SEC-1235M - Manual (Page 7)

TROUBLESHOOTING - GENERAL
PROBLEM : Power ON/OFF switch does not illuminate when turned on.
PROBABLE CAUSE SUGGESTED REMEDY
No power in the AC outlet Check there is power in the outlet.
AC side fuse inside the power Replace the fuse inside the unit.
supply is blown See fuse ratings at page 11
PROBLEM : AC side fuse blows as soon as power is turned on.
PROBABLE CAUSE SUGGESTED REMEDY
Unit is defective Call technical support.
PROBLEM : The output voltage is 0 V or very low
PROBABLE CAUSE SUGGESTED REMEDY
Input voltage is very low Check that the input voltage is 120VAC
The unit is in current limit condition Check the output terminals are not
due to overload caused by large reactive shorted. Remove the load. If the
loading or by the output being short output voltage gets restored, the
circuited load is shorted or is offering large
reactive impedance.
Unit is shut down due to over Check that the fan has not failed or
temperature. the vent openings are not blocked
PROBLEM : Output voltage drops as soon as the load is switched on
PROBABLE CAUSE SUGGESTED REMEDY
The unit is going into current Reduce the load current
limit protection mode to less than the current limit value.
Motors, pumps, compressors, relays,
incandescent and halogen lamps and
large capacitors in the input section of
the DC devices draw very high inrush
or starting currents of up to 10 times
their normal operating currents.
Ensure that these inrush/starting
currents are below the current limit
value of the power supply.
6.