KSB UPA Installation & Operating Manual page 80

A B C D E F G H Possible cause
- ✘ ✘ - - - - - Speed is too low.
- - - - - ✘ - - Wrong fuse size
- - - - ✘ - ✘ ✘ Defective overcurrent relay
- - - - - - - Motor winding not suitable for operating
✘
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8 Trouble-shooting
voltage available
UPA / UPA S
26)
Remedy
Check electrical voltage and increase if
necessary.
Contact KSB.
Fit correct fuse size.
Check and replace if necessary.
Replace the pump set.
Contact KSB.