6. TROUBLESHOOTING
DANGER! Electric shock!
Risk of injury due to electric current.
v
Disconnect the product from the mains before you
troubleshoot the product.
To troubleshoot with the error diagnosis system [ Fig. T1 ]:
The pump is equipped with an error diagnosis system which indicates
various error states via the error LED
(e)
.
1. Disconnect the pump from the mains.
2. Make the respective remedies from the table below.
3. Start the pump again.
The error display has been cleared and the pump is ready for operation
again.
Problem
Possible Cause
Remedy
Error-LED flashes 1 time
(with a 2 second break)
The pump does not pump water for 30 seconds during the
initial operation.
Pump does not suck water
Pump was not sufficiently
filled with liquid to be pumped.
v
Fill the pump and make sure
that water does not drain out
on the pressure side during
the suctioning process
(see 3. OPERATION).
Air cannot escape on the pres
sure side, because the pressure
side outlets are closed.
v
Open the pressure side
outlets (see 3. OPERATION).
Pump does not start
The pump housing has heated
up and the thermal circuit brea
ker has been activated.
1. Open possible shutoff device
in the pressure line (release
pressure).
2. Ensure sufficient ventilation
and let the pump cool down
for 20 min.
The impeller is blocked.
1. Loosen the impeller (see
“To loosen the impeller”).
2. Let the pump cool down for
20 min.
Only for Art. 1758:
Flow sensor signal is faulty
The flow sensor is dirty.
v
Clean the flow sensor (see
“To clean the flow sensor”).
Error-LED flashes
2 times (with a 2 second
break)
The pump does not pump water for 6 minutes during the
initial operation.
Pump does not suck water
Problem on the suction side.
v
Immerse the suction hose
end under water.
v
Eliminate any leak on the
suction side.
v
Clean the check valve on
the suction line and check
the installation direction.
v
Clean the suction filter on the
suction hose end.
v
Clean the filter lid seal and
turn the lid until the stopper
(see 4. MAINTENANCE),
v
Clean the filter in the pump.
Suction hose deformed
or bent.
v
Use a new suction hose.
Pump does not start
The thermal circuit breaker
has been activated
(motor overheated).
v
Let the pump cool down
for 20 min.
Error-LED flashes
3 times (with a 2 second
break)
The pump does not pump water for 30 seconds during the
current operation.
Water supply disrupted
on the suction side
Problem on the suction side.
v
Immerse the suction hose
end under water.
v
Eliminate any leak on the
suction side.
v
Clean the check valve on
the suction line and check
the installation direction.
v
Clean the suction filter on the
suction hose end.
v
Clean the filter lid seal and
turn the lid until the stopper
(see 4. MAINTENANCE),
v
Clean the filter in the pump.
Suction hose deformed or bent.
v
Use a new suction hose.
Problem
Possible Cause
Remedy
Pump does not start
The thermal circuit breaker
has been activated
(motor overheated).
v
Let the pump cool down for
20 min.
Only for Art. 1758:
Flow sensor signal is faulty
The flow sensor is dirty.
v
Clean the flow sensor (see
“To clean the flow sensor”).
Error-LED flashes
4 times (with a 2 second
break)
The pump switches off during on-going operation
after 60 minutes.
Leakage warning is
activated
Leak on pressure side
(e. g. dripping tap).
v
Eliminate any leak on the
pressure side.
The maximum duration of the
leakage warning (low quantity
program 60 min. or 2 min.)
has been exceeded.
v
When using the low quantity
programme, shorten the
watering duration or interrupt
for 5 minutes.
v
Increase the water consump
tion.
The check valve is blocked.
v
Clean the check valve (see
“To clean the check valve”).
Only for Art. 1758:
Flow sensor signal is faulty
The flow sensor is dirty.
v
Clean the flow sensor (see
“To clean the flow sensor”).
Pump does not start
or stops suddenly during
operation
Mains plug is disconnected.
v
Connect the mains plug.
Power failure.
v
Check the fuse and the
cables.
RCD has triggered
(residual current).
v
Disconnect the pump
and contact the GARDENA
Service.
Electrical interruption.
v
Disconnect the pump
and contact the GARDENA
Service.
To loosen the impeller [ Fig. T2 ]:
If the impeller is stuck due to dirt, the Error LED flashes 1 time
(with a 2 second break).
1. Turn the motor shaft
(16)
with a screw driver.
This will loosen the blocked impeller.
2. Start the pump (see 3. OPERATION).
Only for Art. 1758: To clean the flow sensor [ Fig. T3 ]:
If the flow sensor is stuck due to dirt, the Error LED flashes
(with a 2 second break).
1. Loosen both screws
(17)
.
2. Remove the cover
(18)
.
3. Loosen the screw
(19)
and remove the clip
(20)
.
4. Loosen the cap
(21)
counterclockwise (e. g. with a screwdriver).
5. Remove and clean the impeller
(22)
.
6. Clean the housing of the flow sensor.
7. Assemble the impeller
(22)
again in reverse order.
8. First insert the cover
(18)
at the top and then tighten both screws
(17)
at the bottom.
9. Start the pump (see 3. OPERATION).
NOTE: For any other malfunctions please contact the GARDENA service
department. Repairs must only be done by GARDENA service departments
or specialist dealers approved by GARDENA.
7. TECHNICAL DATA
Automatic Home & Garden
Pump
Unit
Value (Art. 1757)
Value (Art. 1758)
Mains voltage
V (AC)
230
230
Mains frequency
Hz
50
50
Rated Power /
Standby consumption
W
800 / 1.5
1100 / 1.5
Connection cable
m
1.5 (H07RNF)
1.5 (H07RNF)
Max. delivery capacity
l/h
3500
4000
Max. pressure
bar
4.0
4.5
Max. delivery head
m
40
45
Max. suction height
m
7
8
Cut-in pressure
bar
1.9 ± 0.2
1.9 ± 0.2
Permitted internal pressure
(delivery side)
bar
6
6
EN
11
