Chapter 11 : Troubleshooting - Delta Electronics RT Series User Manual

Chapter 11 : Troubleshooting

1. When a problem occur, please check if the following situation exists before
contacting Delta service personnel:
Is the main input voltage present?
2. Please have the following information ready if you would like to contact the Delta
service personnel:
Unit information including model, serial number, etc.
An exact description of the problem. The more detailed description of the
problem, the better.
3. When you see the following problems occur, please follow the solutions shown
below.
A. About the error codes shown on the 7-segment Display
Error
Meaning
Code
Charger
E11
Fault
Fan
E12
Fault
Over
E13 Tempera-
ture
+/-DC BUS
E14
High/ Low
Possible Cause
Charger is damaged.
Fan is damaged or
stuck.
The UPS temperature is
too high.
The UPS has abnor-
malities.
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Chapter 11 Troubleshooting
Solution
Contact service personnel.
1. Check if foreign matter
is stuck in the fan. If yes,
please remove it.
2. Contact service personnel.
1. Check whether the UPS's
ventilation is normal.
2. Decrease the loads.
3. Check whether the fan
runs normally.
have installed any)
Contact service personnel.