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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

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

Error-LED flashes 1 time

The pump does not pump water for 30 seconds during the

(with a 2 second break)

initial operation.

Pump does not suck water

Pump was not sufficiently

filled with liquid to be pumped.

Air cannot escape on the pres

sure side, because the pressure

side outlets are closed.

Pump does not start

The pump housing has heated

up and the thermal circuit brea

ker has been activated.

The impeller is blocked.

Only for Art. 1758:

The flow sensor is dirty.

Flow sensor signal is faulty

Error-LED flashes

The pump does not pump water for 6 minutes during the

2 times (with a 2 second

initial operation.

break)

Pump does not suck water

Problem on the suction side.

Suction hose deformed

or bent.

Pump does not start

The thermal circuit breaker

has been activated

(motor overheated).

Error-LED flashes

The pump does not pump water for 30 seconds during the

3 times (with a 2 second

current operation.

break)

Water supply disrupted

Problem on the suction side.

on the suction side

Suction hose deformed or bent. v Use a new suction hose.

(e)

Remedy

v Fill the pump and make sure

that water does not drain out

on the pressure side during

the suctioning process

(see 3. OPERATION).

v Open the pressure side

outlets (see 3. OPERATION).

1. Open possible shutoff device

in the pressure line (release

pressure).

2. Ensure sufficient ventilation

and let the pump cool down

for 20 min.

1. Loosen the impeller (see

"To loosen the impeller").

2. Let the pump cool down for

20 min.

v Clean the flow sensor (see

"To clean the flow sensor").

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.

v Use a new suction hose.

v Let the pump cool down

for 20 min.

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.

Problem

Possible Cause

Pump does not start

The thermal circuit breaker

has been activated

(motor overheated).

Only for Art. 1758:

The flow sensor is dirty.

Flow sensor signal is faulty

Error-LED flashes

The pump switches off during on-going operation

4 times (with a 2 second

after 60 minutes.

break)

Leakage warning is

Leak on pressure side

activated

(e. g. dripping tap).

The maximum duration of the

leakage warning (low quantity

program 60 min. or 2 min.)

has been exceeded.

The check valve is blocked.

Only for Art. 1758:

The flow sensor is dirty.

Flow sensor signal is faulty

Pump does not start

Mains plug is disconnected.

or stops suddenly during

Power failure.

operation

RCD has triggered

(residual current).

Electrical interruption.

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

4. Loosen the cap

(21)

counterclockwise (e. g. with a screwdriver).

5. Remove and clean the impeller

6. Clean the housing of the flow sensor.

(22)

7. Assemble the impeller

again in reverse order.

(18)

8. First insert the cover

at the top and then tighten both screws

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

Unit

Pump

Mains voltage

V (AC)

Mains frequency

Rated Power /

Standby consumption

Connection cable

Max. delivery capacity

l/h

Max. pressure

bar

Max. delivery head

Max. suction height

Cut-in pressure

bar

Permitted internal pressure

bar

(delivery side)

Remedy

v Let the pump cool down for

20 min.

v Clean the flow sensor (see

"To clean the flow sensor").

v Eliminate any leak on the

pressure side.

v When using the low quantity

programme, shorten the

watering duration or interrupt

for 5 minutes.

v Increase the water consump

tion.

v Clean the check valve (see

"To clean the check valve").

v Clean the flow sensor (see

"To clean the flow sensor").

v Connect the mains plug.

v Check the fuse and the

cables.

v Disconnect the pump

and contact the GARDENA

Service.

v Disconnect the pump

and contact the GARDENA

Service.

(20)

(22)

(17)

Value (Art. 1757)

Value (Art. 1758)

230

800 / 1.5

1100 / 1.5

1.5 (H07RNF)

3500

4000

4.0

4.5

1.9 ± 0.2