Northern Industrial Tools 1/2 HP SUMP PUMP - Manual (Page 7)

6
1.
THE ELECTROPUMP
DOES NOT
PUMP
W
ATER,
THE MOT
OR DOES NOT
RUN.
2.
THE PUMP
DOES NOT
SUPPL
Y
W
ATER
BUT
THE MOT
OR IS RUNNING.
3.
THE PUMP
SUPPLIES
A
LIMITED
AMOUNT
OF W
ATER.
4.
INTERMITTENT
OPERA
TION
1.
No electricity
.
2.
Plug inserted incorrectly
.
3.
Enabled safety switch.
4.
Blocked safety switch.
5.
Damaged motor or condenser
.
1.
Obstructed suction grid.
2.
Blocked check valve.
3.
Air in impeller body (air Bubbles.)
1.
Partially obstructed suction gird.
2.
Obstructed pipe.
3.
W
om impeller
.
1.
Solid particles prevent the free rotation of the impeller
.
2.
The temperature of the fluid is too high.
3.
Vollage out of
f range.
4.
The fluid is too dense.
5.
Faulty motor
.
Verify that voltage is present and that the plug is correctly inserted. Reset the safety switch. If the safety switch is once more enabled, Contact a speciallzed electrician. Remove possible obstructions from the impeller
.
Contact the Customer
Assistance Service.
Clean the grid. Clean or replace the value. Perform several start-ups in order to remove all the air
.
Clean the grid. Remove the obstructions. Contact the Customer
Assistance Service.
Renmove the foreign particles. Supply the pump in accordance with nameplate data. Dilute the pumped fluid. Contact the Customer
Assistance Service.
PROBLEM
POSSIBLE CAUSE
REMEDY