7. PROBLEM SOLVING
Problem
Causes
S
olution
Appliance doesn’t
work.
1.
No power or condition in
the socket is not good.
2.
The connector cable is
damaged.
1.
Check the power source
and the socket to see if the
plug connected.
2.
Change the cable.
Appliance
doesn’t
reach operational
pressure.
1.
The double nozzle is worn
cut.
2.
Air exists in the hose.
3.
The in let hose leaks or
blockage.
4.
The inlet or outlet value is
damaged.
5.
The sealed ring of the
plunger is damaged.
6.
The O
-
ring of the unload
valve is damaged.
7.
Pump seat leaks.
1.
Change the double nozzle.
2.
Start the motor, turn on
the spray nozzle and fill
the inlet
hose with water
to exhaust air.
3.
Clean or Change the inlet
hose.
4.
Change the valves.
5.
Change the sealed ring.
6.
Change the O
-ring.
7.
change the pump seat.
The pump leaks.
1.
The sealed ring is
damaged.
2.
The bolt work loose.
1.
Change the sealed ring.
2.
Tighten the bol
t.
No water flows or
flow rate too low.
1.
The new pump doesn’t
take in water.
2.
Dirt exists in the pump.
3.
The inlet or outlet valve is
damaged.
1.
Switch on, and open the
gun trigger valve, then fill
water into the inlet hose
so as to exhaust air, place
the inl
et hose into water
tank.
2.
Remove the dirt.
3.
Change the valve.
If any problems are encountered that are not covered above, refer to qualified service personnel.
EN
12
