Other Faults - Nilfisk ALTO NEPTUNE 4 FA Notice D'utilisation

slow rapid
8.2

Other Faults

Fault
not ON
Pressure too low
Machine is running with
pulsating pressure and
makes knocking noise
No detergents drawn in
Burner soots
1) Options / model variants
> Flashing light (alternately)
- Motor overheated
> - Machine overheated
> Flashing light
- Flame sensor sooted
- Ignition or fuel system failure
Cause
> Plug not connected to the
electrical plug socket
> High pressure nozzle worn
out
> Pressure regulation set to low
pressure or VarioPress-lance
set to low water volume.
> Pump has drawn in air as the
detergent tank is empty
> Detergent tank empty
> Dirt in detergent tank
> Suction valve at cleaning
agent inlet soiled
> fuel contamination
> Burner sooted or adjustment
incorrect
> • Turn main switch in position
"OFF", let the machine cool
down
• Remove/disconnect exten-
sion cable
• Possible phase failure; have
electrical connection checked
> Contact Nilfi sk-ALTO Service
> Clean fl ame sensor (see chapter
> 7.2.5)
Contact Nilfi sk-ALTO Service
Cold water operation possible
Remedy
• Put the plug into the electrical
socket.
• Check fuse (see chapter 9.4 Techni-
cal Data)
• Replace nozzle
• Turn the twist grip on safety control
1) block clockwise (+) or set VarioPress-
1)
lance to higher water volume (see
chapter 4.4)
• Close detergent valve. Remove
lance from gun. Operate spray gun
and let machine run until air in pump
is gone and the machine is running
normally/calm again.
• Top up detergent tank
• Clean detergent tank
• Remove suction valve and clean or
replace
Contact Alto Service
NEPTUNE 4 FA
17