Bedienungsanleitung Trotec TWP11025E (Seite 12 von 17) (Englisch)

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submerged waste water pump TWP 4025 E / TWP 7025 E / TWP 11025 E

Errors and faults

Warning of electrical voltage

Do not touch the mains plug with wet or damp hands.

Warning of electrical voltage

Tasks which require the housing to be opened

must only be carried out by authorised specialist

companies or by Trotec.

• Switch the device off.

• Hold onto the mains plug while pulling the power cable out

of the mains socket.

The device has been checked for proper functioning several

times during production. If malfunctions occur nonetheless,

check the device according to the following list.

The device does not start:

• Check the power connection.

• Check the on-site fusing.

• Check the power cable and mains plug for damages. If you

notice damages, do not try to take the device back into

operation. To avoid safety hazards, do not perform any

repairs. Dispose of the device as described in the Disposal

chapter.

• Check whether the float switch is located above the

automatic switch-on position.

• The device might have overheated and the thermal

protection circuit is activated.

If so, wait for approx. 10minutes before restarting the

device. If the device is not starting, have the electrics

checked by a specialist company or by Trotec.

• The water temperature is above 35°C and the thermal

protection circuit is activated.

• Check whether there are any foreign objects in the air

intake opening(5), the impeller, the reducer(7) and/ or

the hose or pipe.

The device is running, but not pumping any water:

• Check the inside of the device for any remaining air. Lower

the device into the water at a slight angle and wait for the

air to escape completely.

• Switch the device off and on again several times while it is

in the water in order to support automatic ventilation.

• Check whether the minimum water level has been

reached, see technical data. In order to start pumping, the

device requires a minimum water level.

• Check whether the hoses are blocked and whether the

water contains any suspended matter with a particle size

of more than 25mm, which could clog up the device.

• Check whether the used hose diameter is too small.

• Check whether the hose line is kinked or blocked. Remove

kinks and/ or blockages.

• Check reducer(7) and/ or elbow(8) for blockages.

The device is not switching off automatically:

• The float switch is hindered from lowering. Check whether

the float switch can move freely. Remove any blockages or

ensure sufficient freedom of movement for the float

switch.

The device switches off after a brief runtime:

• Check whether the water temperature is too high. The

device might have overheated due to a too high water

temperature and the thermal protection circuit is activated.

• Check the power connection.

• Check the power cable and mains plug for damage.

• Check the on-site fusing.

• Check whether the hoses are blocked and whether the

water contains any suspended matter with a particle size

of more than 25mm, which could clog up the device. The

device might have overheated due to the blockage and the

thermal protection circuit is activated.

Insufficient or decreasing conveying capacity:

• Check whether the hoses are blocked and whether the

water contains any suspended matter with a particle size

of more than 25mm, which could clog up the device.

• Check the hose diameter and the delivery head. An

excessive delivery head paired with a small hose diameter

can cause a reduction of the conveying capacity.

• Check whether the hose line is kinked or blocked. Remove

kinks and/ or blockages.

Note

Wait for at least 3 minutes after maintenance and

repair work. Only then switch the device back on.

Your device still does not operate correctly after these

checks?

Please contact the customer service. If necessary, bring the

device to an authorised specialist electrical company or to

Trotec for repair.

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