Nilfisk-ALTO NEPTUNE 5-46 PE, Service Manual

Page: 41 / 94

E
Troubleshooting
NEPTUNE PE-DE_en_Ver.1.0_October 2010
41
Fault Cause Remedy
Green LED does
not illuminate.
⇒
No power to microproc-
essor.
•
Make sure the machine
is plugged in.
•
Operate main switch S1.
•
Check the primary and
secondary voltage (8
Vac) on transformer T1.
•
Pico fuse F1 has blown
(self-resetting). Wait un-
til F1 is reset or, if the
fault persists, replace
electronic controller A1
(Chapter F.8.1).
Pressure too low.
⇒
HP nozzle worn.
⇒
Pressure rate control or
Vario Press set for too
low a pressure.
⇒
Flexo Power nozzle
open.
•
Replace the HP nozzle.
•
Turn the pressure rate
control on the unloader
valve in the direction
"+", or set the Vario
Press rotary knob
(accessory) on the pistol
for a larger amount of
water.
•
Close the Flexo Power
nozzle.
Machine runs jerk-
ily.
⇒
HP pump taking air in
from empty detergent
tank
•
Close the detergent dos-
ing valve. Take the
spray pipe off the spray
pistol. Operate the spray
pistol and let the ma-
chine run until the air is
expelled from the sys-
tem and the pump works
smoothly.
Jetwash Direct ltd