NEPTUNE 4 FA
8 Troubleshooting
8.1
Indications on Display
Indication lights
16
Cause
>
Constant light
- The appliance is ready for
operation
When switching on, all the
LEDs light up once before the
motor is switched on
>
Flashing light
- Flow sensor fault
- Water tap closed or water
shortage
- Detergent tank empty
- Pressure regulation on
the safety control block or
VarioPress-lance
set to low
1)
water volume
- Machine scaled
> Constant light
- Fuel shortage
> Flashing light
- Nifi sk-ALTO AntiStone short-
age
>
Constant light
- Service interval has expired
>
Flashing light
- Service interval due in 20
hours
> Constant light
- Pump oil low
> Flashing light (simultaneously)
- Leakage or inadmissible op-
erating condition by short-time
operation
- Spray gun leaking
- High pressure hose, coupling
or line system leaking
- Detergent tank empty
- Water inlet fi lter dirty
- High-pressure pump drawing
in air
Remedy
>
Contact Nilfi sk-ALTO Service
Cold water operation possible
>
Required volume fl ow and pres-
sure see chapter 9.4 Technical
Data
>
Top up detergent tank or set de-
tergent metering to "OFF"
>
Turn the twist grip on safety con-
trol block or VarioPress lance
higher water volume (see chapter
4.4)
>
Contact Nilfi sk-ALTO Service
>
Top up fuel
>
Cold water operation is possible
> Top up Nilfi sk-ALTO AntiStone
>
Contact Nilfi sk-ALTO Service
>
Contact Nilfi sk-ALTO Service
> Top up pump oil
>
After three times of short-time op-
eration the manchine switches off.
Reset: Turn main switch to posi-
tion "OFF", then start again. Keep
spray gun pressed for longer than
3 seconds. If a leak occurs caus-
ing the machine to start and stop
briefl y 3 times, then the machine
will switch off.
>
Check Spray gun
>
Replace high pressure hose,
retighten screw fi ttings
>
Top up detergent tank or set de-
tergent metering to "OFF"
>
Clean fi lter (see chapter 7.2.1)
>
Repair leaks
Continued
1)
Options / model variants
to
1)