Zippy MRW-6420P - Manual (Page 14)

1.9 HOT SWAP PROCEDURES
Please refer to the following when either power module or the fan found
defective.
A) Locate and turn on the defective power module by examining the individual
LED (if LED without light, it indicates the power module is defective).
***WARNING:
Please perform the above step carefully otherwise it may cause shut down the
whole system.
B) Turn off the individual on/off switch of the defective power module.
***WARNING:
Please do not remove the defective power module until you have worn gloves to
keep from be burned. This is due to the cover of the power module has been
used as heat sink for cooling, usually the temperature is around 50 ~ 60 degree
Celsius under full condition.
C) Loosen the thumb screws of the power module
D) Remove the defective power module by pulling out
***WARNING:
Please put aside the power module for cooling down. Prevent other people from
touching it until it cools down.
E) Replace with a functional power module and insert it into the power system
to the end.
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