Troubleshooting - Malmbergs HP18190MHR Instruction Manual

STORAGE AND ENVIRONMENT
Steps of storage
1. Switch the appliance to "Off".
2. Turn off the water supply tap.
3. Remove the plug from the socket.
4. Discharge the residual pressure from the gun until all water has come out of the nozzle.
5. Drain and wash out the detergent tank at the end of the working session. To wash
out the tank, use clean water instead of the detergent.
6. Engage the gun safety catch.
Environment of storage
1. The temperature should be 0-60°C.
2. Do not leave the appliance in a damp environment for a longer period of time.
TROUBLE SHOOTING
Problem Possible cause
Nozzle worn
Water filter fouled
Water supply pressure low
Air being sucked into system
Pump does not reach
working pressure
Air in pump
Adjustable nozzle not positioned correctly
Water intake from external tank
Intake water too hot
Pressure drops
Nozzle clogged
during use
O-ring to one-way valve broken
Intake filter dirty
Water leakage Seals worn
Appliance noisy Water too hot
Oil leakage Seals worn
No water out when
Nozzle clogged
triggering the gun
Adjustable nozzle on high pressure setting
Detergent too dense
No detergent taken
High pressure hose extension being used
in
Deposits or restriction in detergent circuit
30
Solution
Replace nozzle
Clean filter
Turn on the water supply tap fully
Check tightness of hose fittings
Switch off the appliance and keep pressing
and releasing the gun trigger until the water
comes out in a steady flow. Switch the ap-
pliance back on again
Turn the adjustable nozzle
Connect appliance to the main water supply
Reduce temperature
Clean nozzle
Replace the broken component
Clean filter
Have the seals replaced at your nearest
authorized service centre
Reduce temperature (see technical data)
Have the seals replaced at your nearest
authorized service centre
Clean the nozzle
Pull out the nozzle
Dilute with water
fit original hose
flush with clean water and eliminate any
restrictions. If the problem persists, contact
an Authorized service centre