wepump WELOW, Manual, Page: 19 / 24

19
7
Q1300B101_01/1/2011
GB
Minor faults are often sufficient to cause a malfunction. In most cases, you will be able to correct
these faults easily yourself. Please start by referring to the following table before contacting our
technical support. This will help you save much effort and possibly expense.
Fault/malfunction Cause Remedy
Pump does not run. No mains voltage? Check cables, plug, socket and fuse.
Motor overheats due to:
• liquid temperature too
high?
• blocking by foreign bod-
ies?
Eliminate the cause of the overheating
(max. temperature of liquid
►
Technical data – p. 8 ).
Residual current circuit break-
er (RCCB) triggered?
Activate RCCB.
Contact qualified electrician if RCCB
triggers again.
Motor defective? Contact service partner.
Pump runs but does
not pump.
Suction openings blocked? Rectify blockage.
Pump draws in air? Keep the pump at an angle while sub-
merging.
Switch the pump on and off several
times in order to expel air.
Pump blocked by foreign bod-
ies?
Clean the pump (
►
Cleaning the suc-
tion area – p. 6 ).
Delivery rate too low. Delivery height too great? Comply with maximum delivery height
(
►
Technical data – p. 8 ).
Pressure line diameter too
small?
Use pressure line with larger diameter.
Pressure line blocked? Rectify blockage.
Suction openings blocked? Clean suction opening.
Pressure line kinked? Straighten pressure line.
Pressure line leaks? Seal pressure line, tighten threaded
connections.
Pump runs very loud-
ly.
Pump draws in air? Ensure there is sufficient liquid present.
Keep the pump at an angle while sub-
merging.
Malfunctions and troubleshooting Technical data
8
GB
Q1300B101_01/1/2011
If you are unable to correct a fault yourself, please contact our technical support directly. Please
note that improperly conducted repairs will void your warranty and may cause you additional
expenses.
Technical data
Model
QSB-JH-5503MA
Q4003A-1
230 V ~ / 50 Hz
400 W
IPX8
8
7000 l/h
7 m
35 °C
1”G1” 1¼” G1½”
10 m
5 mm
Item number
Rated voltage
Rated power
Protection type
Max. supply height
Max. flow rate
Max. submersion depth
Max. temperature of liquid
Pressure pipe diameter
Pipe connection
Cable length
Grain size
Weight 30 kg
Attention!
Risk of damage to the appliance!
The grain size mentioned does not refer to sand or stones but rather to soft, flexible
particles such as fluff and similar which the rotor cannot wedge inside the pump.
QSB-JH-4003A
WELOW
7 m