OLIJU Dreno Instructions D'installation Et D'utilisation page 4

8. FAULT FINDING CHART
Before attempting to diagnose any fault, make sure that the electricity supply has been switched off.
Motor does not start.
Pump runs but gives no water.
Pump runs constantly or gives insufficient
water.
Thermal relay trips out after short time of
operation.
If in spite of carryng out the above operations, the problem still persists contact the nearest service centre.
4
FAULT
- No electricity supply.
- Motor switched off by level switch.
- Fuses are blown.
- Impeller blocked by impurities.
- Short-circuit in cable or motor.
- Pump blocked by impurities.
- Discharge pipe blocked by impurities.
- Liquid level too low. The pump inlet is not completely
submerged in the pumped liquid.
- Pump partly blocked by impurities.
- Discharge pipe partly blocked by impurities.
- Incorrect direction of rotation.
- Pump too small for the application.
- Temperature of pumped liquid too high.
- Impeller blocked or partly blocked by impurities.
- Phase failure.
- Voltage too low.
EN
CAUSE