EN
16
TROUBLESHOOTING
FAULT
CAUSE
REMEDY
The pump does not run
when the switch is
pressed.
The plug is damaged.
Check the plug and fuses to see if
they are okay.
There is insufficient voltage.
Check the voltage.
The pump is locked.
Manually turn over the motor.
The thermal relay has triggered.
Let the motor cool down.
The pump runs, however
no pressure is generated.
The intake filter is clogged.
Clean the
filter.
Air is being drawn in at the
connectors.
Check the intake connection
fitting and the hose connectors.
The inlet and outlet valves are
clogged or worn.
Clean or replace
The diameter of the nozzle hole is
too large.
Check and replace.
The
operating pressure is
irregular.
Air is being drawn in.
Check the intake connectors.
The valves are clogged and worn.
Clean and replace.
The seals are worn.
Check and replace.
The motor did not stop completely
when previously letting go of the
gun trigger.
Wait for the motor to stop
completely before pressing the
trigger again.
The motor suddenly
stops.
The thermal relay has triggered
due to overheating.
Check the voltage. Turn off the
switch and let the motor cool
down for a few minutes.
The
pump drips.
The seals are worn.
Check and replace (professional
repair shop).
There is a loss of
pressure.
The nozzle is worn.
Change the nozzle.
The valves are dirty or clogged.
Check, clean, exchange.
The valve seals are worn.
Check and /or exchange.
The seals are worn.
Check and /or exchange.
The filter is clogged.
Check and /or clean.
There is excess noise.
Air is being drawn in.
Check intake lines.
The valves are worn, dirty or
clogged.
Check, clean, exchange.
The bearings are worn.
Check and /or exchange.
The water temperature is too high.
Lower the temperature to below
40 °C.
The filter is dirty.
Check and /or exchange.
Expelled water is mixed
with oil.
The sealing rings (water + oil) are
worn.
Check and /or exchange.
Water leaks from the
pump head
The seals are worn.
Exchange the seal.
The O-
ring of the seal set is worn
Exchange the O
-
ring.
When the switch is
pressed, the motor hums
but does not start.
The mains voltage is lower than
that
specified.
Check the voltage.
The pump is blocked or frozen.
Check the pump
The extension cable is insufficient
(cross section too small, cable too
long).
Check to see that the extension
cable is sufficient. Exchange the
extension cable for one
that is
sufficient.
