Nilfisk-ALTO NEPTUNE 1 Service Manual

E
Troubleshooting
NEPTUNE 1&2_EN_Ver.2.1_45/2014
70
>
Constant light >
Machine shuts down, Cold water
operation possible
Boiler overheated. Ex-
haust sensor
(EXT-H) has cut off
fuel supply.
>
Check water supply
Insufficient water flow
>
Clean boiler
Machine scaled
Boiler not serviced
> Constant light >
Clean flame sensor(B7)
Flame sensor(B7) soo-
ted
>
Ignition or fuel system
failure
> Cold water operation possible
> Flashing light > Turn main switch in position „OFF“,
let machine cool down
Motor overheated
>
Remove/disconnect extension cable
>
Possible phase failure; have electri-
cal connection checked
>
> Flashing light > Cold water operation possible
Faulty temperature
sensor(B1).
>
Check wire to temperature sensor
(B1).
>
> Flashing light >
Cold water operation possible
Illegal temperature
setpoint
>
> Flashing light > Check flow sensor.
Pressure switch is turned off -
flow switch is not turned off
within a time of 1 second
> Visual test of lamps
When switching on, all the LEDs
light up approximately 1 sec.
Neptune 1&2. Trouble Shooting

Nilfisk-ALTO NEPTUNE 1 Specifications

General

Brand	Nilfisk-ALTO
Model	NEPTUNE 1
Category	Pressure Washer
Language	English