Clarke SUBMERSIBLE PUMP Instruction Manual download pdf (Page 6)

TROUBLE SHOOTING

A. PUMP WILL NOT START

1. Manual type (i.e. without float switch)

1.1 Check to ensure Power is switched on.

1.2 Check fuse (consult an electrician if in doubt).

1.3 If extension lead is fitted, check connections (consult an electrician if in

doubt).

1.4 Internal thermal cut-out has not re-set. Leave for 5 minutes and try again.

1.5 The Impeller may be jammed. Disconnect from the mains supply, and

remove any objects that may be obstructing the impeller and try again.

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

2. Automatic Type (with float switch)

2.1 Check all above.

2.2 Float switch may be jammed against side wall, or prevented from moving.

2.3 Water level too low - float switch in OFF position - Lift float to check switch.

B. PUMP WILL START BUT NOT PUMP

1. Water level too low - below the minimum suction level (Manual type).

2. Check to ensure strainer is not blocked.

3. Discharge tube clogged or obstructed.

4. 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. (See specification chart page 7).

5. Air bubble in the pump, produced during the plunge. Plunge the pump again, at

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

6. Impeller may be damaged - Consult your CLARKE dealer

C. AUTOMATIC PUMP WILL NOT STOP

1. Float switch may be prevented from moving to the fully down position.

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

D. PUMP STOPS RUNNING

1. Thermal overload has operated. If this condition persists, investigate the cause.

REMEMBER: DO NOT attempt to pump anything other than CLEAN water.

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

3. A foreign object has jammed the impeller.

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Clarke SUBMERSIBLE PUMP Instruction Manual Page 6