8. Fault finding the product
DANGER
Electric shock
Death or serious personal injury
‐ Switch off the power supply before you
start any work on the product. Make
sure that the power supply cannot be
accidentally switched on.
See also the quick guide.
8.1 The pump does not run.
Cause Remedy
The fuses in the electrical installation are blown. Replace the fuses. If the new fuses blow too, check the
electrical installation and the power cable.
The residual-current circuit breaker, RCCB, has
tripped.
Cut in the circuit breaker.
No power supply. Contact the power supply company.
The motor protection has cut off the power supply
due to overload.
Check if the pump is blocked.
1. Switch off the power supply to the pump.
2. Remove the rubber plug.
3. Try to turn the pump shaft with a screwdriver.
4. If the pump shaft is stuck, follow the instructions
below in The pump is blocked.
Note: Remember to refit the rubber plug.
The pump or the power cable is defective. Repair or replace the pump or cable.
The float switch is in dry-running position. Check the water level and the float switch for free
movability.
Note: If the tank is empty, and the float switch is often in
this position, install a larger tank.
SBA: The dry-running protection of the pump has
stopped the pump.
Check the water level.
Switch off the power supply and wait 2 min before
switching it back on.
The pump is blocked. Check and clean the pump.
1. Switch off the power supply to the pump.
2. Remove the screws at the bottom of the pump with
a cross-head screwdriver.
3. Remove the pump base.
4. Clean the inlet strainer and hydraulic parts with a
brush and a water jet.
5. Reassemble the pump.
14
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