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NetSure Rectifier Module User Manual (UM1R243000 / 11BJ1307WA)
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Rev. G
20
Table 3:
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
module mounting assembly. 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 and
controller.
Alarm
Indicator
(Red) On
Severe load sharing
imbalance.
Rectifier output disabled for
any reason, including
overvoltage shutdown and
internal output fuse open.
Rectifier addresses
contradictory.
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.
Alarm
Indicator
(Red) Flashing
One or both fans not
operating (rectifier shuts
down).
Replace the fan(s).