KH4014F-KH3018F
TROUBLE ESHOOTING
TROUBLES
CAUSE
S
CURE
S
The pump runs but fails to reach the
stated pressure
The pump sucks air
Check suction hose and seals
Worn, dirty or locked suction/
delivery valves
Clean or replace
Inadequate or worn nozzle
Replace
Worn gaskets
Replace
Clogged suction filter
Clean or replace
Dirty VBR valve seat
Clean or replace
Irregular swings in pressure
Worn, dirty or locked suction/
delivery valves
Check, clean and/or replace
Air suction
Check the suction hose
Worn gaskets
Replace
Poor water supply
Check the water supply
Pressure drop
Worn nozzle
Replace the nozzle
Dirty suction/delivery valves
Clean or replace
Worn gaskets
Replace
Noise
Air suction
Check the air suction lines
Worn, dirty valves
Clean and/or replace
Worn bearings
Replace
Presence of water in the oil
Worn water-oil seal rings
Replace
Water leaking from the head
Worn gaskets
Replace
Worn o-rings
Replace
Oil leakages
Worn oil sealing rings
Replace
The motor does not start
The plug is not correctly inserted
Check plug, cable, switch
No power
Check plug, cable, switch
Locked 0-1 switch
Unlock or replace
The motor hums but does not start
The voltage (Volt) is lower than required
Check the electric system is
adequate
The pump is locked or frozen
Make the motor turn manually
Electrical extension with inadequate
cross-section
Refer to the table for correct use of
the extensions.
The motor suddenly stops
Check that voltage is as required.
Disconnect the switch and leave
cooling for a few minutes.
Please contact manufacturer or an after-sales service center for each of the above mentioned operation.
Summary of Contents for KH3018F
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