Nilfisk ALTO NEPTUNE 1 Mode D'emploi page 19

8 Troubleshooting
8.1 Indications on Display
Indication lights
1) Options / model variants
Original instruction
All manuals and user guides at all-guides.com
Cause
> The light is constant
- The appliance is ready for
operation
> Flashing light
- Flow sensor fault
- Water tap closed or water
shortage
- Detergent tank empty
- Pressure regulation on the
safety control blocks or
the VarioPress
set to low water volume
- Machine scaled
- Spray gun is leaking
- High pressure hose,
coupling or line system is
leaking
- Motor is overheated
> Constant light
- Low fuel level
> Flashing light
- Low Nilfi sk-ALTO Anti-
Stone level 1)
> Constant light
- Service interval has
expired
> Flashing light
- Service interval due in 20
hours
- Microprocessor error
> Constant light
- Boiler overheated.
Exhaust sensor (EXT-H)
has cut off fuel supply
- Insuffi cient water fl ow
- Machine scaled
- Boiler not serviced
> Constant light
- Flame sensor (B7) is
sooted
- Ignition or fuel system
failure
3) For NEPTUNE 1 only. For NEPTUNE 2 overheating warning see next page.
Remedy
> Refuel detergent or set SDR
value to "0"
1) lance is
Turn main switch to position
3)
"OFF" - let the machine cool
down
Remove/disconnect exten-
sion cable
> Top up fuel
> Cold water operation is pos-
sible
> Top up Nilfi sk-ALTO Anti-
Stone
> Contact Nilfi sk-ALTO Service
> Contact Nilfi sk-ALTO Service
> Machine shutdown
> Machine shuts down. Cold
water operation is possible.
> Check water supply
> Contact Nilfi sk-ALTO Service
> Clean fl ame sensor (B7) (see
chapter 7.2.4)
> Contact Nilfi sk-ALTO Service
> Cold water operation is pos-
sible
NEPTUNE 1, NEPTUNE 2
NEPTUNE 2 Special
19