Velleman GWP1 - Manual (Page 4)

3795-B PEREL 4
Maintenance Guidelines
This submersible pump is an approved high-quality product which is subject to severe final controls. We recommend
regular inspection and maintenance to ensure long equipment life and uninterrupted operation.
• Remove the mains plug before all maintenance work.
• In the event that the pump is often transported in the course of operation, it should be cleaned out with clear water
after every use.
• In case of stationary installation, the function of the floating switch should be checked every 3 months.
• All fibrous particles which may have built up inside the pump housing should be removed with a water jet.
• Remove deposits on the floater with clear water.
Cleaning the impeller
If excessive deposits collect in the pump case you must dismantle the bottom part of the pump as follows:
• Remove the intake cage from the pump case.
• Clean the impeller with clear water.
Important! Do not put down or rest the pump on the impeller!
• Assemble in reverse order.
Troubleshooting
Problem
Possible Cause Suggested Solution
Pump does not start - No mains supply
- Floater does not switch
- Check mains supply
- Bring floater in a higher position
No flow - Inlet sieve is clogged
- Pressure hose is bent
- Clean inlet sieve water jet
- Reset hose
Pump does not switch off - Floater cannot sink down - Place pump properly on shaft
ground
Insufficient flow - Inlet sieve is clogged
- Reduced pumping capacity by dirty
and abrasive water
- Clean inlet sieve
- Clean pump and replace worn out
parts
Pump switches off after short
operating period
- Thermal cut-out stops pump due to
dirty water
- Water is too hot; thermal cut-out
stops pump
- Remove mains plug, clean pump
and shaft
- Make sure the water temperature
of 35°C is not exceeded
Technical Specifications
Power Supply max. 230VAC / 50Hz
Power Consumption max. 400W
Max. Flow Rate 7000l/h
Max. Pressure 0.7 bar
Max. Height 5m
Max. Grain Size 30mm
Max. Liquid Temperature 35°C
Power Cord 3 G1.5, 10m
Velleman nv cannot be held responsible in the event of damage or injury resulted from (incorrect) use of this
device.
For more info concerning this product, please visit our website www.perel.eu.
The information in this manual is subject to change without prior notice.