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eSure™ Rectifier Module User Manual (UM1R482000e3)
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Rev. M
21
Table 7:
Rectifier Module Troubleshooting
Symptom
Possible Cause(s)
Suggested Action(s)
Power
Indicator
(Green) Off
No input voltage.
Make sure there is input voltage.
Internal input fuse
open.
Replace the rectifier.
Protection
Indicator
(Yellow) On
AC input under/over
voltage.
Correct the AC input voltage to within the
acceptable range.
PFC under/over
voltage.
Replace the rectifier.
Moderate load sharing
imbalance.
Check if the rectifier is properly seated in the
shelf. If this does not correct the fault, replace
the rectifier.
Rectifier not inserted
into the slot
completely.
Remove and properly insert the rectifier.
Rectifier over-
temperature
protection.
Fan rotor blocked: remove any object that may
be blocking the fan.
Ventilation blocked (inlet or outlet): remove any
object that may be blocking the inlet or outlet.
Ambient temperature too high or rectifier inlet
too close to a heat source: lower the ambient
temperature or relocate the heat source.
Rectifier in ECO
Standby Mode when
ECO Mode is active in
controller.
--
Protection
Indicator
(Yellow)
Flashing
Loss of
communication with
controller (the rectifier
can provide power).
Check the communication cables.
Remove and properly insert the rectifier.
Alarm
Indicator
(Red) On
Severe load sharing
imbalance.
Rectifier output
disabled for any
reason, including
overvoltage shutdown
and internal output
fuse open.
Turn AC power to the rectifier off or remove the
rectifier, wait 30 seconds or more (until the LEDs
on the rectifier extinguish), then turn the AC
power to the rectifier on or re-insert the rectifier.
If rectifier fails to start, shuts down again, or load
sharing imbalance persists; replace the rectifier.
Rectifier module
addresses
contradictory.
Replace the rectifier.
Alarm
Indicator
(Red) Flashing
Fan not operating
(rectifier module
shuts down).
Replace the fan.
