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QuietPower 1800 Inverter Owner’s Manual Rev 15 OCT 01 Page 12
6 Troubleshooting Guide
This section describes potential installation and configuration problems and solutions, including fault
conditions and indicators. More information is found in the Technical Addendum and on our web site.
6.1 Fault Conditions and Indicators
The following fault conditions are displayed on the control panel along with an alarm sound and blinking
LCD back-light.
Table 3. Fault Indicators.
Control Panel Indication Fault Condition Solution
HIGH BATT SHUTDOWN Battery voltage too high Check for fault with battery charging
system. Manually reset inverter by
turning switch to ‘0 ’ then to ‘|’ again.
LOW BATT SHUTDOWN Battery voltage too low Charge battery. Manually reset
inverter by turning switch to ‘0’ then
to ‘|’ again.
OVERLOAD SHUTDOWN Battery current too high, probable AC
overload
Reduce load on the inverter.
OVERTEMP SHUTDOWN System over-temperature Improve ventilation and cooling
and/or reduce load on the inverter.
SYSTEM SHUTDOWN
PS_FAULT SHUTDOWN
DC-DC SHUTDOWN
Overload or system hardware fault Ensure all loads are disconnected.
Try to reset the unit by switching to
‘0’ and then to ‘|’. If unit still does
not operate, Contact Iris Technology
for service warranty replacement.
The table below provides some troubleshooting tips:
Table 4. Troubleshooting Tips.
Problem and symptoms Possible Cause Solution
No output voltage and control
panel reading 20.4 VDC or lower
Low input voltage shutdown Recharge battery, check
connections and cable
No output voltage, no voltage
indication.
Inverter switched to ‘0’
No battery power to inverter
Reverse DC polarity connection -
internal fuse open
Turn Inverter power switch to ‘I’
Check wiring to inverter.
No output voltage and control
panel reading 32.0 VDC or higher
High input voltage shutdown Make sure that the inverter is
connected to correct battery
voltage, check regulation of
charging system.
Low battery warning on all the
time, voltage indicator below 22.0
VDC
Poor DC wiring, poor battery
condition
Use proper cable and make solid
connections.
Charge battery or use new
battery.