30
Troubleshooting
General remarks
If the cooling unit is equipped with one of the following options, the corresponding error
message is displayed on the operating panel of the power source:
-
flow controller ... no | H2O (coolant flow error)
-
temperature controller... hot | H2O (excess coolant temperature)
Coolant pump fuse
Fushing for rotating motor shaft if the coolant pump is
blocked
Troubleshooting
Coolant flow too low or no flow
Cause:
Coolant level too low
Remedy:
Refill coolant
Cause:
Throat or foreign substance in the cooling circulation
Remedy:
Remove throat or foreign substance
Cause:
Cooling pump fuse defective
Remedy:
Replace coolant pump fuse
Cause:
Cooling pump defective
Remedy:
Replace cooling pump
Cause:
Cooling pump blocked
Remedy:
-
Remove coolant pump fuse (7)
-
Insert suitable screw driver through motor shaft bushing
-
Rotate motor shaft (2)
-
Replace coolant pump fuse (7)
Cause:
Cooling filter (option) at plug-type connection of water return line clogged
Remedy:
Clean cooling filter with clean tap water or replace filter insert
(7)
(2)
