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Maintenance & Troubleshooting
Fan Noise
3 When the previous corrective actions do not eliminate a critical temperature alarm,
verify that the Kaleido-MX’s onboard fan is working correctly. See
Fan Noise
Over time, a fan’s performance (operating speed) can degrade which may raise critical
temperature and fan alarms. Under this circumstance, a fan may emit a rough-sounding
lower pitched sound as compared to the sound that other healthier fans emit. To confirm
that the card / module has an abnormally-sounding fan, during off hours when the system
is not in use, eject the card or if possible, the module from the multiviewer’s frame to verify
that the distinctive sound stops and take corrective actions (see below).
Or there may be no sound at all if the fan’s rotation is completely blocked. While the card /
module is in the multiviewer’s frame, make a visual inspection with a flashlight to confirm
fan rotation. If the fan is not rotating, then corrective actions must be taken.
Fan Alarm and Fan Noise Corrective Actions
When a fan alarm is raised, it must be addressed right away. During off hours when the
system is not in use, eject the card or if possible, the module from the multiviewer’s frame
and inspect the fan assembly: remove any accumulated dust and dirt from the card /
module with compressed air and remove any obstruction to the fan’s ability to freely rotate.
Reinsert the card / module into the multiviewer’s frame and restore system operation to see
if the fan alarm becomes inactive.
The multiviewer’s circuitry monitors the fan motor’s rotational speed to detect that the fan
is rotating fast enough to provide sufficient cooling; it raises a fan alarm when the fan’s
rotational speed has gone below a factory-set threshold.
When the fan is not rotating fast enough (as detect by a fan alarm), is making abnormal
noises, or is not rotating at all, the fan is worn out and it must be replaced with a new one.
Fan Replacement Kit
The replacement fan kit is available by contacting Customer Support. See
. The
location of the card’s part number and serial number is shown below.
Identifying the Fan to Replace for a Fan Fail Alarm
As some cards / modules have more than one fan, identify in XAdmin the specific fan to be
changed on the card / module: check each card / module individually in XAdmin for a fan
