18
1)
Options / model variants
Original instructions
NEPTUNE 5 FA
8.2 Indication lights on control panel
8.3 Other Faults
Indication light Cause Remedy
fl ashing
>
see FLO
•
see FLO
ON
> Low fuel level • Fill fuel tank
Cold water operation possible
> Low Nilfi sk-ALTO AntiStone
(Anti-Scale) level
• Fill Nilfi sk-ALTO AntiStone (Anti-
Scale) tank
fl ashing
> Service interval: Service due
in 20 hours
Contact Nilfi sk-ALTO Service
ON
> Service interval expired
Contact Nilfi sk-ALTO Service
ON
> Pump oil low • Fill to proper level
Fault Cause Remedy
not ON
> Power cord not properly
connected to power supply
• Check power cord connetction
• Check fuse (see chapter 9.4 Technical
Data)
Pressure too low > High pressure nozzle worn
out
• Replace nozzle
>
Pressure regulation set to low
pressure
•
Turn the twist grip on safety control
block clockwise (+)
Machine is running with
pulsating pressure and
makes knocking noise
> Pump has drawn in air due to
detergent tank being empty
• 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.
No detergents drawn in > Detergent tank empty • Fill detergent tank
> Dirt in detergent tank • Clean detergent tank
> Suction valve at cleaning
agent inlet soiled
• Remove suction valve and clean or
replace
Burner soots > fuel contamination
Contact Nilfi sk-ALTO Service
> Burner sooted or adjustment
incorrect
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