Cleaning the flow sensor:

D

F

C

E G

H

If the flow sensor is dirty, this may result in spurious error
messages (LED flashes orange).
1. Unscrew both screws e.
2. Remove the cover r.
3. Undo the screw t and detach the clip z.
4. Unscrew the cap u anticlockwise.
5. Remove the impeller i and clean it. Clean the housing of the
flow sensor.
6. Re-fit the impeller i with the metal part in the mounting
direction.
7. Screw the cap u into place clockwise.
8. Secure the cap u by way of the clip z using the screw t.
9. First insert the cover r at the top and then tighten the
two screws e at the bottom.
Problem Possible Cause Remedy
Pump runs, but the suction
action doesn’t take place
Pump sucks in air at a joint. v Seal connections on suction
side so are airtight.
Leaky or damaged suction
hose.
v Check suction line for damage
and seal so is airtight.
The pump was not filled with
the liquid to be pumped.
v Fill the pump
(see “4. Operation”).
The liquid escapes over the
hose which is connected to
the delivery side during the
suction action.
1. Fill the pump again
(see “4. Operation”).
2. When starting operation hold
the pressure hose approx.
1m vertically above the
pump, until the suction
action has taken place.
Absolutely vacuum-resistant connection is achieved by using
GARDENA Suction Hoses (see point “8. Available accessories”).
Leaky screw fitting 6 at the filler
cap 7.
v Check seal (replace if neces-
sary) and tighten connection
securely (do not use pliers).
Air cannot escape, since delivery
side is closed or remaining water
is in the pressure hose.
v Open shut-off valves
(e. g. nozzle) in the delivery
line, empty the delivery hose
or disconnect it from the
pump during priming.
The waiting time wasn’t
observed.
v Switch on the pump and wait
up to 5 min.
Suction filter or backflow prevent-
er in the suction hose clogged.
v Clean the filter or the back
flow preventer.
Too high suction height. v Reduce suction height.
In case of any other difficulties concerning the suction action,
use GARDENA Suction Hoses with Backflow Preventer
(see point “8. Available accessories”) and fill in the liquid to
be pumped over the filler cap 7 before operation.
Problem Possible Cause Remedy
Pump motor runs,
but delivery capacity
or pressure suddenly
decreases
Suction filter at the suction
hose is sucked free.
v Reduce flow rate on the
delivery side with a control
valve, e.g. GARDENA
art. no. (2)977.
Suction filter or backflow
preventer clogged.
v Clean filter or back-flow
preventer.
Leaks at suction side. v Eliminate leak.
Impeller blocked. v Release impeller.
Pump motor doesn’t start
or suddenly stops
No power. v Check fuses and electric
connections.
Circuit breaker has switched off
the motor due to overheating /
overload.
v Ensure sufficient cooling /
ventilation and clean the
impeller chamber.
Electric failure. v Send the pump to one
of our GARDENA Service
Centres.
5000/5; 6000/6 inox:
Pump delivers and
LED flashes orange
The flow sensor is dirty. v Clean the flow sensor.
5000/5; 6000/6 inox:
Pump switches off and
the LED shines red
No supply of fluid to be
pumped for approx. 5 minutes /
leakage on the suction side.
v Establish supply of fluid to
be pumped/check suction
line and re-start pump.
The pump ran for approx.
5 minutes against the closed
delivery side.
v Open the delivery side and
re-start pump.
For any other malfunctions please contact the GARDENA service department.
Repairs must only be carried out by GARDENA service departments or specialist
dealers authorised by GARDENA.
8. Available accessories
GARDENA Suction Hoses Kink-proof and vacuum-proof, optionally available by the metre
Art. no. 1720/1721 (19 mm (3/4")- / 25 mm (1")) without connecting
fittings or in fixed length Art. no. 1411/1418 complete with con-
necting fittings.
GARDENA Suction Hose
Fitting
For connection on the suction side. Art. no. 1723/1724
GARDENA Pump Connection
Set
For connection on the delivery side. Art. no. 1750/1752
GARDENA Suction Filter with
backflow preventer
To equip suction hoses with backflow
preventer sold by the metre. Art. no.
1726/1727/1728
GARDENA Electronic
Manometric Switch
Automatically cuts in and out the pump
depend ingon the current operating pressure.
With dry-running safety. It must be installed
at one of the two outlets. (In the case of
Art. No. 1734 / 1736 the special mode has to
be activated for this purpose).
Art. no. 1739
18
GB
19
GB