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Troubleshooting
Safety
Troubleshooting
Not enough coolant circulation, or none at all
Cause:
Coolant level is too low
Remedy:
Top up the reservoir with coolant
Cause:
Constriction or foreign body in the cooling circuit
Remedy:
Eliminate the constriction or foreign body
Cause:
Fuse for coolant pump is faulty
Remedy:
Replace the coolant pump fuse, as described in the section headed “Fuse
protection of the cooling-unit”
Cause:
Coolant pump is faulty
Remedy:
Replace the coolant pump
Cause:
The coolant filter in the plug-type connector for coolant return-flow is blocked
Remedy:
Clean the coolant filter with clean tap water or replace the filter-insert
Cause:
Permissible duty cycle exceeded
Remedy:
Await cooling-down phase of the coolant pump
Cooling capacity too low
Cause:
Fan defective
Remedy:
Replace fan
Cause:
Cooling pump defective
Remedy:
Replace coolant pump
Cause:
Cooler contaminated
Remedy:
Clean cooler with dry compressed air
Cause:
Cooling capacity of cooling unit too low
Remedy:
Use cooling unit with higher cooling capacity
WARNING!
An electric shock can be fatal. Before opening up the unit:
-
Shift the mains switch into the “O” position
-
Unplug the unit from the mains
-
Put up an easy-to-understand warning sign to stop anybody inadvertently
switching it back on again
-
Using a suitable measuring instrument, check to make sure that electrically
charged components (e.g. capacitors) have been discharged
CAUTION!
Inadequate PE conductor connections can cause serious injury and
damage. The housing screws provide a suitable PE conductor connection for
earthing (grounding) the housing and must NOT be replaced by any other screws
which do not provide a reliable PE conductor connection.
