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Annex
Trouble shooting
Fault
The motor does not start
when switched on.
When switched on, the
motor does not start and
the on/off switch starts to
flash.
When the speed increases,
the motor stops and the on/
off switch starts to flash.
16
Cause
Motor is in sleep mode
(downtime longer than
2 minutes).
Battery voltage too low.
Density or viscosity of the
pumped liquid is too high.
Pump tube blocks or stiffs, there-
fore an excessively high torque
occurs and the motor automati-
cally switches off.
Load too high
Observe operating limits
with regard to pump tube
combination and viscosity/
density (→ Operating
instructions pump tube).
Remedy
Press on/off switch twice
Charge battery
Check operating limits
→ Operating instructions pump
tube
If necessary, reduce motor speed.
Disconnect pump tube from mo-
tor and turn on the coupling.
Result:
Stiff → repair pump
Smooth-running → repair motor
Reduce the speed and acknowl-
edge the error. Then work with a
reduced flow rate.
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