Samlex America PST-30S-24E - Manual (Page 40)

40 | SAMLEX AMERICA INC.
seCtIOn 11 | trouble shooting Guide
iSSUe PoSSiBLe cAUSe ReMeDY
When switched ON, Status
LED (2) does not light. Buzzer
is Off. There is no AC output
voltage. There is no voltage at the
DC input terminals / 12V
power outlet in the vehicle Check the continuity of the battery
input circuit.
Check that the internal/external battery fuse/
vehicle fuse for 12V power outlet is intact.
Replace if blown. When powered from 12V
power outlet in the vehicle, ensure that the AC
load is less than 150W.
Check that all connections in the battery input
circuit are tight.
Polarity of the DC input
voltage has been reversed
that has blown the exter-
nal / internal DC side fuses
(Note: Reverse polarity
may cause permanent
damage). Check external and internal fuses. Internal
fuses may be soldered and may not be easily
replaceable. Replace fuses. If unit does not
work, call Technical Support for repair.
Low AC output voltage
(No buzzer alarm). Low input voltage at the
inverter terminals and the
load is close to the maxi-
mum allowable power. Check that the battery is fully charged. Re-
charge, if low.
Check that the battery cables are thick enough
to carry the required current over the required
length. Use thicker cables, if required.
Tighten connections of battery input circuit.
Reduce load.
Buzzer alarm is sounded when
load is switched ON. Voltage
at DC input terminals reads
between 10 to 10.5V for 12V
versions and between 20 to
21.0V for 24V versions. Status
LED (2) is GREEN. AC output
voltage is available. DC input voltage is less
than 10.5V for 12V
versions and less than
21.0V for 24V versions. Check that the battery is fully charged. Re-
charge, if low.
Check that the battery cables are thick enough
to carry the required current over the required
length. Use thicker cables, if required.
Tighten connections of the battery input circuit.
Buzzer alarm is sounded
when load is switched ON.
Voltage at the DC input
terminals reads below 10V for
12V versions and below 20V
for 24V versions. Status LED
(2) is ORANGE. There is no
AC output. Shut-down due to low
DC input voltage - Less
than 10V for 12V versions
and less than 20V for 24V
versions. Check that the battery is fully charged. Re-
charge, if low.
Check that the battery cables are thick enough
to carry the required current over the required
length. Use thicker cables, if required.
Tighten connections of the battery input circuit.