Clarke HIPPO 2, Operation & Maintenance Instructions Manual

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Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com

TROUBLESHOOTING

PROBLEM

SOLUTION

PUMP WILL 
NOT START

1. Make sure that the power is switched on.

2. Check fuse (consult an electrician if in doubt).
3. If an extension lead is fitted, check connections (consult 

an electrician if in doubt).

4. Internal thermal cut-out has not re-set. Leave for 5-10 

minutes and try again.

5. The impeller may be jammed. Disconnect from the mains 

supply and remove any objects that may be obstructing 
the impeller.

6. Water level is below the minimum level required by the 

float switch.

7. If the pump still fails to start, consult your CLARKE dealer 

for advice.

PUMP WILL 
START BUT NOT 
PUMP

1. Check that the inlet is not blocked.
2. Check that the outlet is not clogged or obstructed.

3. The head may be too great, i.e. you are trying to lift the 

water too great a distance for the pump to cope with.

4. Air bubble in the pump, produced during immersion. 

immerse the pump again, at an angle, and shake it whilst 
lowering to remove any air trapped in the system.

5. Impeller may be damaged - Consult your CLARKE dealer.

PUMP WILL 
NOT STOP

1. Pump set to manual mode.

2. Float switch may be faulty. Consult your CLARKE dealer 

for advice.

PUMP STOPS 
RUNNING

1. Thermal overload has operated. Leave for 5-10 minutes 

and try again.

2. Pump has run dry or float switch has cut in.

3. A foreign object has jammed the impeller.