Sinclair SDV 6 Service Manual page 126

8.1.56 J47 - IPM (fan module) and IDU unmatched
Error display
The faulty IDU stops. Other IDUs of the same system: operate normally.
Error impact
ODU of the same system: operate normally.
Error trigger
When detecting that the fan drive board does not match the set value of the driver
Error recovery
Automatic recovery

Possible cause

Troubleshooting
Note:
1. For specialized tooling and instructions, please contact your local dealer or technical support personnel.
2. Please observe the following rule when replacing the fan drive board: For units whose fan drive board is
welded onto the main control board, if either the fan drive board or main control board becomes faulty, the
whole control board has to be replaced.
Digital display
Unit model code or capacity(HP) code is incorrectly set.
The fan drive board is wrong or damaged.
Use the dedicated tooling (1)
to set the model code and
capacity code for the main
control board of IDU
according to the IDU model
or nominal capacity, and
power on the unit again
Is the fault cleared?
J45
No
Yes
Fault cleared
Display position
Panel, display box, and wired controller
Replace the fan drive board
(2)
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