16
1ZSE 5492-128 en, Rev. 4
2.3.2 Power system
Error condition Fault nding procedure
The three-phase motor runs
back and forth without the
on-load tap-changer changes
position.
Reverse two of the phases of the incoming supply.
WARNING
Dangerous voltage!
2.3.3 Miscellaneous
Error condition Fault nding procedure
Corrosion and/or condensation
in the motor-drive mechanism
cabinet.
Check the function of the heater. Refer to Heater in Main-
tenance Guide.
Water in the motor-drive
mechanism cabinet.
1. Adjust the hinges on the cabinet door.
2. Replace the door gasket on the cabinet.
Oil in the motor-drive mecha-
nism cabinet.
1. Locate the leakage.
2. Contact ABB.
2 Trouble-shooting
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