Instruction Handbook PFP-6hp-FL
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C.E.T. Fire Pumps Mfg. This handbook is subject to change without notice,
Contact your local C.E.T. dealer or C.E.T. direct to ensure you have the latest version.
11.
Troubleshooting guide
For all problems that are not covered by this table, please contact your local C.E.T. Fire pumps dealer or C.E.T. direct.
Problem
Probable cause
Remedy
The engine won't start
No fuel in the combustion
chamber
The fuel tank is empty
Fill the fuel tank
The electric starter doesn't
work
Not enough electrical power
Check the electrical connections, check if the battery is charged, if required charge the battery. Check the engine
manual for faulty electrical starter problems. Use the recoil starter.
Faulty engine
Refer to the troubleshooting guide of the engine owner's manual
The engine output is
low
Engine is overheating
Refer to the troubleshooting guide of the engine owner's manual
The engine won't speed up
The throttle control system is
malfunctioning
Reset, repair or change the throttle control system.
The engine seems to
speed up and down
Air pockets are created in the
suction hose
Air pockets in the suction hose
Make sure the inlet hose is straight and doesn't have a sharp turn angle allowing the formation of an air pocket.
Suction hose is not air tight
Make sure to have well understood and applied the priming protocol of the pump. Check for any possible air leakage
in the suction hose. Check the mechanical seal for leakage.
Faulty engine
Refer to the troubleshooting guide of the engine owner's manual
The engine works but
the priming system
doesn't seems to be
able to fill the pump.
(part 1/2)
The exhaust gas flow going
through the venturi isn't high
enough
The engine speed is too low
The throttle should be in the "fast" position while priming. For engine's speed problem, refer to "the engine output is
low" section.
The exhaust port isn't
completely closed.
Check if the exhaust port closing handle completely covers the outlet pipe. Clean up and flatten the closing surface
beneath the exhaust port closing handle.
The pump is not air tight
The primer sucks in ambient air
and thus can't take out all the
air from the suction pipe
Make sure drain valve and discharge valve are closed. Verify the suction hose(s) and the gaskets are in good
conditions.
Verify the end of the suction hose is completely submerged by at least 12" (305mm) of water. When pumping high
volumes of water, sometimes a whirlpool is created by the suction. If so, make sure to submerge the suction hose
end by at least 24" (610mm).
The pump is too high above
the water source
The height of water to pull up is
above the priming system
capacity
The priming system is guaranteed up to 20' (6meters). Above this height it is highly suggested to reduce the height
difference.
