19
GB
9. Troubleshooting
Important. The pump must not run dry.
Fault Cause Remedy
Engine does not start Spark plug fouled
Air filter dirty
No fuel in the tank
Automatic oil cut-out has not re
sponded
Clean or replace the spark plug
Clean the air filter.
Top up fuel.
Check oil level, top up engine oil
Pump fails to prime Intake valve not in the water
No water in the pump chamber
Air in the intake line
Intake cage (intake valve) blocked
Max. intake head exceeded
Place the intake valve in the water
Fill the pump chamber with water
through the filler neck
Check the intake line for leaks and
seal it if necessary.
Clean intake cage
Check intake head and reduce it if
necessary
Insufficient pumping rate Intake head too high
Intake cage soiled
Water level falling rapidly and in-
take line is out of the water-
Pump performance reduced by
deposits
Check intake head and reduce it if
necessary
Clean intake cage
Place the intake line at a deeper
level
Clean pump
