8.8.5
Water cooling faults
The following table shows the possible causes of and remedial measures for faults on water-
cooled machines.
Table 8-4
Cooling system faults
↓ Overheating
↓ Water leaking
Possible causes of faults
Remedial measures
X
Reduced cooling
● Check the cooling water flow, increase the amount of cooling water
if necessary.
● Clean the cooling system, e.g. by briefly increasing the cooling
water flow rate or by adding suitable cleaning agents.
X
Cooling water flow rate too low
Consult the manufacturer. If the specified cooling water quality is ob‐
served, the cooling system is maintenance-free.
X
Inlet temperature too high
Set the correct upstream temperature.
X
Cooling water supply switched off
Switch on the cooling water supply.
X
Cooling water contains too many or unsuit‐
able antifreeze and corrosion-protection
agents
Use cooling water of the agreed quality.
X Leaks in the cooling system
Consult the manufacturer.
X Defective cooling water connection
Find the leak and seal it.
Operation
8.8 Faults
SIMOTICS T-1FW4 Heavy Duty 1FW4407-1KM81-1BC0-Z
Operating Instructions 11/2018
81