Nilfisk-ALTO 106269015 - Manual (Page 18)

16
NEPTUNE PE/DE
Original Instructions
8 Troubleshooting
8.1 Indications on Display
Indication light Cause Remedy
Green LED ON
> Appliance ready for operation.
When switching on, all the LEDs
light up once.
Yellow LED ON
> Fuel shortage • Top up with fuel
Cold water operation possible
Red LED flashing
> Service interval: Service due in
20 hours Contact Nilfisk-ALTO Service
Red LED ON > Service interval expired Contact Nilfisk-ALTO Service
Red LED ON
>
> Pump oil low
Engine oil low •
• Top up with pump oil
Top up with engine oil
Green LED flashing
> Flow sensor failure Contact Nilfisk-ALTO Service
Cold water operation possible
> Water tap closed or water
shortage • Required volume flow and pres-
sure see section 9.4 Technical
Specifications
> Machine scaled Contact Nilfisk-ALTO Service
Green LED and red LED
flash simultaneously
> Leakage or inadmissible opera-
ting condition by short-time
operation • After three times of short-time
ope ration the heating switches
off. Reset: Turn main switch to
position “OFF“, then start again.
Keep spray gun pressed for lon-
ger than 3 seconds. If a leak oc-
curs causing the machine to start
and stop briefly 3 times, then the
heating will switch off.
> Spray handle leaking • Check spray handle
> High pressure hose, coupling or
line system leaking • Replace high-pressure hose,
retighten screw fittings
> Water inlet filter dirty • Clean filter (see section 7.2.1)
> High-pressure pump drawing in
air • Repair leaks
Cold water operation possible
Red LED ON
> Charging rate too low • Engine has not started
• Generator defective
Contact Nilfisk-ALTO Service
Red LED ON
> Pump overheated • Let pump cool down, avoid long
by-pass time (NEPTUNE 5-46/
5-54 PE, see section 4.2)
> Engine cooling water overheated
(Mitsubishi) • Check water level in radiator
Green LED and red LED
flash alternately
> Overheating failure Contact Nilfisk-ALTO Service.
Operation with cold water pos-
sible.