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• it switches the pump off to protect from dry run-
ning, when not water is being conveyed (e. g. in
the event of air in the intake line).
► P. 3, fig. 2
• Control lamp [Power on] (9) lights up green when
the pump is switched on (On/Off switch).
• Control lamp [Pump on] (10) lights up yellow
when the pump is operating.
• Control lamp [Failure] (11) lights up red in the
event of a problem and the emergency switch off
function is triggered (e. g. when the pump runs
dry).
• If after approximately 30 seconds no water is
being pumped, the unit automatically deactivates
the pump. In this case, check the intake line for
leaks; ensure water feed and
press [Restart] (12).
If the motor does not start, the pump does not build
up pressure, or other similar problems occur, switch
the unit off and try to eliminate the fault (► Trouble-
shooting – p. 26).
Note: The unit is set ex-works to the correct
on and off switching pressure.
DANGER! This represents a danger to
life by means of electric shock! Only
experts may open the unit and set it.
Maintenance
DANGER! This represents a danger to
life by means of electric shock! Before
doing any work unplug the unit from the
power supply.
Error/Fault
Pump does not work.
Delivery rate too low.
Not enough pressure.
26
Storage
In the likelihood of frost, remove unit and accesso-
ries, clean and store in a frost-protected location.
Removal and storage
1. Switch off the unit, disconnect the power.
2. Open the pressure line (turn water tape or spray
3. Completely empty pump, to do this unscrew the
4. Remove intake and pressure lines from the unit.
5. Store the unit in a frost-free room (min. 5 °C).
Troubleshooting
What to do when something doesn't work...
Malfunctions are often caused by minor faults. You
can easily remedy most of these yourself. Please
consult the following table before contacting the ven-
dor. You will save yourself a lot of trouble and possibly
money too.
Cause
No power supply?
Motor overheats due to high liquid
temperature?
Motor overheats due to sealed ven-
tilation slots?
Residual current protection switch
(FI-switch) activated?
Motor defective?
Lack of water?
Intake line leaking?
Suction level too high?
Filter blocked or dirty?
Non-return valve blocked?
Water loss between motor and
pump, shaft sealing leaky?
DANGER! Risk of injury! Before doing any
work on the unit, ensure that the unit and
any connected accessories are without
pressure.
Note: Seals harden over time and can thus
not be used. Check the seal before installa-
tion for damages and replace if necessary.
NOTICE! Risk of damage to the device!
Frost will destroy the unit and the accesso-
ries as these always contain water!
nozzle), allow water to drain off fully.
water drainage screw (4) on the pump.
DANGER! Risk of injury! Unprofessional
repairs may mean that your unit will no
longer operate safely. This endangers you
and your environment.
Remedy
Check the cable, plug, and the fuse.
Eliminate cause of overheating.
(max. liquid temperature ► Techni-
cal data – p. 27)
Switch on FI-switch. If it happens
again contact the electric service
partner.
Contact your local vendor.
Ensure sufficient water supply.
Seal intake line, tighten all screws.
Observe maximum suction level
(► Technical data – p. 27).
Suction height must be deducted
from the conveyance height.
Clean or replace filter.
Clean or replace valve.
Contact your local vendor.
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