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16
Original Instructions
Cleaning of machine vents
D4 The machine should be kept clean so as to let cooling air pass freely through the
machine vents.
Greasing of O-rings
D5 To ensure an easy connection and that O-rings do not dry up the couplings should
be greased regularly.
8 Troubleshooting
To avoid unnecessary disappointments, you should check the following before contacting the Gerni ser-
vice organization.
Symptom Cause Recommended action
Machine refuses to
start
Machine not plugged in
Defective socket
Fuse has blown
Defective extension cable
Plug in machine
Try another socket.
Replace fuse. Switch off other machines.
Try without the extension cable.
Fluctuating pressure
Pump sucking air
Valves dirty, worn out or stuck
Pump seals worn out
Check that hoses and connections are air-
tight.
Clean and replace or refer to local Gerni-
distributor.
Clean and replace or refer to local Gerni-
distributor.
Machine stops
Fuse has blown
Incorrect mains voltage
Thermal sensor activated
Nozzle partially blocked
Replace fuse. Switch off other machines.
Check that the mains voltage corresponds
to specifi cation on the model tag.
Leave the washer for 5 minutes to cool
down.
Clean the nozzle (see section 7)
Fuse blows
Fuse too small Change to an installation higher than the
amp. consumption of the machine.
You may try without the extension cable.
Machine pulsating
Air in inlet hose/pump
Inadequate supply of mains
water
Nozzle partially blocked
Water fi lter blocked
Hose kinked
Allow machine to run with open trigger until
regular working pressure resumes.
Check that the water supply corresponds to
specifi cations required (see model tag)
NB! Avoid using long, thin hoses (min. 1/2")
Clean the nozzle (see section 7)
Clean the fi lter (see section 7)
Straighten out hose.
Machine often starts
and stops by itself
Pump/spray handle is leaking Contact your nearest Gerni Service Centre.
Machine starts, but no
water comes out
Pump/hoses or accessory
frozen
No water supply
Water fi lter blocked
Nozzle blocked
Wait for pump/hoses or accessory to thaw.
Connect inlet water.
Clean the fi lter (see section 7)
Clean the nozzle (see section 7)
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