GB
Cleaning the check valve: | 1. Unplug the pump from the mains. | ||
| 2. | Turn the Pressure Tank Unit upside down. | |
| 3. | Turn the rotary switch | to FILL. |
| 4. | If necessary close all the suction side inlets. | |
| 5. | Open all pressure side outlets, so that the pressure side is | |
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| depressurised. |
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2 | 6. | Unscrew the drain screw | and drain the water. |
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| 1 | Undo screw and slide the clip upwards 1 and to the rear | |
| 7. | ||
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| 2 into the bearing groove. | |
| 8. | Using a suitable tool, unscrew the check valve cover . | |
| 9. | Remove the valve body | and wash it under running water. |
10.Reassemble the check valve in the reverse order.
11.Switch the Pressure Tank Unit back on again
(see 4. Operation).
7. Troubleshooting
DANGER ! Electric shock !
➔ Unplug the cable at the mains before
Problem | Probable cause | Remedy | ||
The pump sucks nothing up. | Rotary switch is not turned to | ➔ Refill pump and turn rotary | ||
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| RUN. | switch to RUN. | |
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| The pump is sucking air through | ➔ Check all connections and | |
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| a leak at a connection on the | make them | |
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| suction side. | necessary. | |
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| Pump is not adequately primed | ➔ Prime the pump | |
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| with the liquid to be pumped. | (see 4. Operation). | |
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| Air cannot escape on the pres- | ➔ Open the pressure side | |
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| sure side, because the pressure | outlets. | |
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| side outlets are closed. |
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| End of the suction hose is not in | ➔ Check the complete suction | |
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| the water, the | hose from suction point | |
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| at the end of the suction hose is | through to the pump for leak- | |
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| missing or leaking, the suction | tightness and repair any | |
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| hose is kinked, connections are | leaks as necessary. | |
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| leaking or the suction filter is |
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| blocked. |
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Pump motor does not start | Mains plug not plugged in. | ➔ Insert mains plug into a | ||
or stops suddenly during |
| mains socket (230 V AC). | ||
operation. |
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Power failure. | ➔ Check fuse and cables. | |||
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| Pump impeller is jammed. | ➔ Turn the pump impeller motor | |
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| shaft with a screwdriver to | |
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| free it. | |
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| Overheating due to running dry | ➔ Check the water level at the | |
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| or water temperature too high | suction side. | |
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| (Thermal overload switch has | ➔ The maximum temperature of | |
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| switched the pump off). | the liquid conveyed should | |
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| be (35 °C). | |
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