TROUBLESHOOTING GUIDE
Problem: Possible Causes:
The pump switches itself off
because of overheating.
(thermal motor switch)
The pump runs,
but takes in nothing.
Reduction in the quantity
of water delivered.
The pump does not start or
Stops suddenly during operation.
The float is not functioning.
The motor switch did not
switch itself on.
The rotor is jammed.
The overheating protection switches
off the pump because it is overheated.
No electrical power.
Dirt particles (for example, pebbles)
have settled in the intake port.
Check the cord/plug/fuses.
Please note:Send the pump to
customer service.
The temperature of the fluid is too
high, a maximum of +35° C.
The intake section is clogged.
Clean.
Check the power source. Pull the
power plug out of the electrical
socket and clean the impeller.
Make sure that the permitted
highest temperature limit of
+35° C is not exceeded.
Check the fuse and electrical
connections. Clean the intake
port. Check the power source.
The discharge pipe is bent, kinked
or its diameter is reduced.
The base / rotor is dirty.
Partially clogged./
Straighten the pipe.
Increase the diameter.
Clean.
Pull the power plug out of
the socket.
The water level is too low.
Clogged by drawn-in particles Foreign matter jammed in
the pump rotor.
The temperature of the pumped
fluid is too high.
It may not exceed +35° C in
continuous operation.
Remedy:
Submerge the pump more deeply.
Check and clean the pump.
Reduce the temperature of the fluid.
Wait for approx. 26 minutes for
the motor to cool (motor switch).
The water level is below the
minimum intake level.
Air bubbles can accumulate
with the immersion of the pump
or its automatic operation because
of an inappropriate positioning of
the float switch.
This occurs at the minimum water
level when the pump does not stop,
but instead takes in air.
Intake filter clogged.
Discharge pipe clogged.
Switch the pump off.
Let the air out by tilting the pump
and again submerging it in water.
Remove impurities.
Clean the pipe.
Newly position and clean the pipe.
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