Vogt SSD Series, Service Manual, Page: 12 / 21

12
Useful Tips
Useful Tips
for trouble-free operation
8.1 Equipment does not start
Possible Causes Solutions
1.- The phase sequence may be
incorrect.
1. Disconnect the power cable.
2. Try one of the following.
options:
• Change phases
2.- An alarm has been
triggered on the control panel.
3.- The pump does not start
automatically, but it is possible to
start it manually.
•
Check the control circuit and
functions.
4.- The installation does not receive
voltage.
Check if:
• The impeller rotates smoothly.
•
The sensor indicators do not
indicate an alarm.
•
The overload protection is not
deactivated.
Check if:
• The starting level regulator is
working.
•
All connections are in perfect
condition.
•
Relay and contactor coils are intact.
• The control switch (Man/Auto) makes
contact in both positions.
Check if:
• The main switch is turned on.
•
Control voltage is present at the
starting equipment.
•
Fuses are intact.
•
Voltage is present on all phases of
the supply line.
•
All fuses are rated and secured to the
fuse holders.
•
Overload protection is not disabled.
• The motor cable is not damaged.
5.- The impeller is jammed.
•
Clean:
• The impeller.
• The sump to prevent the
impeller from clogging again.