5 Maintenance and Troubleshooting
N1C L-Series(1-3kVA) UPS
User Manual
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5 Maintenance and Troubleshooting
This chapter mainly describes maintenance guide, daily battery maintenance, replacing battery
announcements and troubleshooting.
5.1 Maintenance Guide
Proper maintenance is the key that the device works on the best status and with a longer service life.
5.1.1 Safety Precautions
To ensure human safety and device security, observe the following precautions.
Remember that even though UPS doesn't work, there may still exist dangerous voltage inside
UPS. Before maintenance, use a multi-meter to check the voltage and make sure that UPS is
completely shut down and stay in safe status.
The operator should be familiar with UPS and user manual.
Before operating UPS, take off conductive objects, such as rings, watches.
Observe safety regulations strictly. If any doubt, consult professionals.
Before maintenance, use a voltmeter to check the power is turned off and in a safety condition.
5.1.2 Preventive Maintenance
To improve the efficiency and reliability of UPS, do the following maintenance tasks regularly.
Keep operation environment free from dust and chemical pollutant.
Check whether fans work properly, and air vents are not blocked. If some fans stop working,
replace them in time.
Check whether battery voltage is normal.
Check whether UPS works normally.
5.2 Daily Battery Maintenance
Charging requirements of battery.