Amarex KRT series, Installation And Operating Manual, Page: 91 / 124

8 Trouble-shooting
91 of 124
Amarex KRT
A B C D E Possible cause Remedy
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✘
- - - Dry installation:
Suction lift is too high, NPSHavailable
(positive suction head) is too low.
Check the inlet line for clogging, clean if necessary;
fully open the shut-off element in the inlet line.
✘ - - - - Pump sets without cooling system
(installation type S):
The temperature control device for
monitoring the winding has tripped due to
high winding temperature.
The motor will restart automatically once it has
cooled down.
✘ - - - - The thermistor tripping unit with manual
reset for temperature limiter has tripped the
pump as a result of the permissible winding
temperature being exceeded.
Have cause determined and eliminated by
qualified and trained personnel.
Pump sets with cooling system:
Check the coolant level.
✘ - - - - Motor has been tripped
by leakage monitor.
Have cause determined and eliminated by
qualified and trained personnel.
✘ - - - - Mechanical seal monitor has tripped. Have cause determined and eliminated by
qualified and trained personnel.
✘ - - - - Bearing temperature monitor has tripped. Have cause determined and eliminated by
qualified and trained personnel.