46 | SAMLEX AMERICA INC.
SECTION 11 |
Troubleshooting Guide
ISSUE
POSSIBLE CAUSE
REMEDY
There is no AC output. The
Green LED marked "POWER"
(2, FIG 6.1) is lighted. Buzzer
is ON. Greeen indication light
on the GFCI is OFF.
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input DC voltage
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16.5V or higher for PST-
1500-12 / PST-2000-12
t%$JOQVUWPMUBHFJT7
or higher for PST-1500-
24 / PST-2000-24
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Check that the voltage at the DC input
terminals is less than 16.5V for PST-1500-12
/ PST-2000-12 and less than 33V for PST-
1500-24 / PST-2000-24
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Ensure that the maximum charging voltage
of the battery charger / alternator / solar
charge controller is below 16.5V for PST-
1500-12 / PST-2000-12 and below 33V for
PST-1500-24 / PST-2000-24
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Ensure that an unregulated solar panel is
not used to charge a battery. Under cold
ambient temperatures, the output of the
solar panels may exceed 22V for 12V Panels
or 44V for 24V Panels. Ensure that a charge
controller is used between the solar panel
and the battery.
AC output shuts down
completely. Red LED marked
"OVERLOAD" (3, Fig 6.1) is
lighted. Buzzer is ON. The
Green LED marked "POWER"
(2, Fig 6.1) is lighted. Green
indication light on the GFCI
is OFF.
Permanent shut-down
of the AC output due to
continuous overload >
110% - 115% for 2 to 2.5
sec or due to short circuit
on the AC load circuit. (AC
output voltage is 80VAC
or less for 1 to 1.5 sec)
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Reduce the load / remove the short circuit
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The load is not suitable as it requires higher
power to operate. Use an inverter with
higher power rating.
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If the unit goes into permanent overload
again after resetting and removing the load
completely, the unit has become defective.
Call Technical support.
NOTE:
The unit will be latched in this shut-
down condition and will require manual reset.
To reset, switch OFF the power ON/OFF switch
(1, Fig 6.1), wait for 3 minutes and then switch
ON again.
Before switching ON again, remove the cause
of the shut-down.
There is no AC output. Buzzer
alarm is sounded. Red LED
marked "OVER TEMP" (4, Fig
6.1) is lighted. The Green LED
marked "POWER" (2, Fig
6.1) is lighted. Green indica-
tion light on the GFCI is OFF.
Shut-down due to over
temperature because of
fan failure or inadequate
cooling as a result of high
ambient temperature or
insuffi cient air exchange
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5
¡
C or higher
Check that the fan is working. If not, the fan
control circuit may be defective. Call
Technical Support.
If the fan is working, check that the ventilation
slots on the suction side and the openings
on the discharge side of the fan are not
obstructed.
If the fan is working and the openings are not
obstructed, check that enough cool replace-
ment air is available. Also check that the ambi-
ent air temperature is less than 40ºC.
Reduce the load to reduce the heating effect.
After the cause of overheating is removed and
the internal hot spot cools down to 65
5
¡
C,
the AC output will be restored automatically.
There is no AC output. Green
indication on the GFCI is
OFF. The Green LED marked
"POWER" (2, Fig 6.1a) is
lighted. No buzzer alarm.
GFCI has tripped due to
leakage or due to Neutral
to Ground bond on the
load side.
Check load side circuits for leakage or Neutral
to Ground bond. Switch ON the inverter if in
OFF condition. Check that Status LED (2, Fig
6.1) is Green. Press Reset Button on the GFCI to
reset the GFCI. On resetting, the Green indica-
tion on the GFCI will switch ON.
