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POWERING TECHNOLOGY
Document No. M00035-MAN rev. 3a
aspiro1u_m35-man-rev3a-0417.indd
Chapter 6 Maintenance & Troubleshooting
6.1 Maintenance
Power system maintenance includes maintaining all parts of the system.
Annual maintenance should involve checking all connections on the terminals and circuit
breakers. Output voltage should be veried to be within the acceptable limits at least once a
year. Test results should be recorded and led to see any deviations.
The power system requires periodic inspections and routine cleaning. It is very important
to keep all areas and components of the system free from dust or other unwanted objects to
ensure free air circulation and safe operation of the system.
CAUTION To undertake any further maintenance, strictly follow all manufacturer’s
recommendations provided in the equipment manual.
6.2 Troubleshooting
This troubleshooting chapter helps to determine the cause of the problem and suggests
possible repair solutions. If the rst step of the recommendation does not solve the problem
continue to the next one.
NOTE If the malfunctioning of the system persists, please contact UNIPOWER technical
support.
NOTE For a description of Alarms and Messages generated by the system controller see
the Alarms/Messages section of the appropriate controller manual:
ACC Extended: http://www.unipowerco.com/pdf/acc-man.pdf
PCC: http://www.unipowerco.com/pdf/pcc-man.pdf
By default, alarms are set to be indicated with a red light (higher priority) and messages
with a yellow light (lower priority).
Fault Possible Cause Suggestion/Solution
Low System
Voltage
Module failure.
Loss of AC power.
Load exceeds module capacity.
Replace faulty module.
Verify AC input connection.
Add module to system.
High System
Voltage
Module failure.
System voltage exceeds the set limit.
Replace the faulty module.
Check the High Voltage Alarm limit
setting.
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