Nilfisk-ALTO POSEIDON 7 - C3, Service Manual, Page: 24 / 39

Troubleshooting
POSEIDON 7 NEW-C3_en_Ver.1.0_33/12
24
E
Fig. E.1: Troubleshooting 1
Fault Cause Remedy
Pressure drop - Air in the system.
- High pressure nozzle blocked /
worn.
- Pressure control on the spray lance
is not set correctly.
- Detergent container empty.
- Water inlet temperature too high.
- Vent the system by operating the spray gun
several times at short intervals .If necessarly
operate the cleaner for a short time without the
High pressure hose connected.
- Clean / replace the high pressure nozzle.
- Set the required working pressure.
- Change container or close detergent valve.
- See technical data part ”B”.
Pressure
fluctuations
- Lack of water
- Water inlet hose is too long
or its cross-section too small.
- Lack of water caused by
blocked water filter.
- Lack of water because max.
permissible suction height has
not been heeded.
-Pump sucks in air (suction mode)
- Open water tap.
- Use specified water inlet hose
(Refer to user manual).
- Clean the water filter in the water connection.
(Never work without water filter).
- See technical data part ”B”
- Check that the suction set is air tight.
The motor do-
es
not start when
the machine is
switced on.
- The plug is not inserted
properly, i.e. there is no
current.
- The main fuse is switced off.
- Check the plug, lead and switch.
If necessary have them replaced by a trained
electrician.
- Switch on the main fuse.
General failures.