Er14
Fan out of order
Line
Switches to the Bypass loop,
then the UPS will lock in
Bypass output. Displays error
code & alarm. If fan is not
replaced, UPS will also go into
overtemp and shut down.
Has the UPS ever been
cleaned.
Clean the UPS.
Replace the Fan.
initial & backup
Lock the UPS, then show error
code & alarm
Has the UPS ever been
cleaned.
Clean the UPS.
Replace the Fan.
Er16
Reserved
Er17
Reserved
Er18
EPROM ERROR
Call Factory
Call Factory
Er19
Reserved
Er20
DC Buss will not
discharge
shutdown
Lock the UPS, then show error
code & alarm
Maximum
6
x 55 AH.
Check and test battery
voltages.
What is the age of the
batteries.
Has there been a long
power failure.
Add
ext
ABM.
Er21
Reserved
Er22/23
Reserved
Er25
Reserved
Er26
Input Over Current
Bypass abnormal
or
CVCF
Show error code & alarm then
switch to bypass mode. After
1 minute, it switches back to
the
Locks the UPS, then show
error code & alarm
Maximum
6
x 55 AH.
Check and test
battery voltages.
What is the age of the
battery(s).
Has there been a long
power failure.
Add
ext
ABM.
Er28
Bypass overload
Bypass
Lock the UPS, then show error
code & alarm
Check and verify for
equipment short.
Check for ventilation
obstructions.
Is the UPS clean.
3
9
CODE
RESULT
OCCURS
STATUS
ACTION
Er 24
Reserved
DBL MX-U Series UPS Outdoors 1000-2000W 120V Manual English
20180312
- This manual is for qualified personnel only