Modifications And Spare Parts; Troubleshooting - DAB FEKA VS series Installationsanweisung Und Wartung

MODIFICATIONS AND SPARE PARTS

Any modification not authorized beforehand relieves the manufacturer of all
responsibility. All the spare parts used in repairs must be original ones and the
accessories must be approved by the manufacturer so as to be able to guarantee
maximum safety of the machines and systems in which they may be fitted.
The manufacturer declines all responsibility for possible errors in this booklet, if due to misprints or
errors in copying. The company reserves the right to make any modifications to products that it
may consider necessary or useful, without affecting the essential characteristics.
FAULT
1. The motor does not
start and makes no
noise.
2. The pump does not
deliver.
3. The pump does not
stop.
4. The flow is
insufficient.
5. The thermal
overload protection
stops the pump.

TROUBLESHOOTING

CHECK
(possible cause)
A. Check that the motor is live.
B. Check the protection fuses.
C. The float switch does not allow
starting.
A. The intake grid or the pipes are
blocked.
B. The impeller is worn or blocked.
C. The check valve, if installed on the
delivery pipe, is blocked in closed
position.
D. The level of the liquid is too low.
When starting, the level of the liquid
must be higher than that of the
strainer.
E. The required head is higher than the
pump characteristics.
A. The switch is not disactivated by the
float.
A. Ensure that the intake grid is not
partly blocked.
B. Ensure that the impeller or the
delivery pipe are not partly blocked
or encrusted.
C. Ensure that the impeller is not worn.
D. Ensure that the check valve (if fitted)
is not partly clogged.
E. On three-phase motors, check that the
direction of rotation is correct (See
the paragraph on "CHECKING THE
DIRECTION OF ROTATION").
A. Check that the liquid to be pumped is
not too dense as this could cause
overheating of the motor.
B. Check that the water temperature is
not too high.
C. The pump is partly blocked by
impurities.
D. The pump is mechanically blocked.
ENGLISH
B. If they are burnt-out, change them.
C. -Ensure that the float moves freely.
-Ensure that the float is efficient
(contact the supplier).
A. Remove the blockage.
B. Change the impeller or remove the
blockage.
C. Check that the valve is operating
correctly and replace it if necessary.
D. Adjust the length of the float switch
cable (SEE THE PARAGRAPH ON
"ADJUSTING
SWITCH").
A. -Ensure that the float moves freely.
-Check float efficiency (the contacts
could be damaged - contact the
supplier).
A. Remove any blockage.
B. Remove any blockage.
C. Change the impeller.
D. Carefully clean the check valve.
E. Invert the connection of two supply
wires.
C. Carefully clean the pump.
D. Check whether there is rubbing
between the moving and fixed parts;
check the wear of the bearings
(contact the supplier).
26
REMEDY
THE FLOAT