Nilfisk-ALTO NEPTUNE 5-46 PE, Service Manual

Page: 39 / 94

E
Troubleshooting
NEPTUNE PE-DE_en_Ver.1.0_October 2010
39
Fault Cause Remedy
Green LED flas-
hes.
⇒
Flow sensor fault.
⇒
Water tap closed or wa-
ter flow inadequate.
⇒
Detergent tank empty.
⇒
Pressure rate control or
Vario Press set for too
small amount of water.
⇒
Machine scaled up.
•
See Chapter F.3.3,
F.3.5 and G.3.4."Cold
water" mode is possible.
•
Requirements in Chap-
ter B.
•
Refill detergent or set
the SDR valve to "0".
•
Set the pressure rate
control or Vario Press
for a higher water flow.
•
Descale the machine.
Green
LED and
red LED flash si-
multaneously.
⇒
Leakage or impermissi-
ble operating status
through brief operation.
⇒
Spray pistol leaking.
⇒
HP hose, HP coupling or
pipe leaking.
⇒
Detergent tank empty.
⇒
Filter clogged in water
intake.
⇒
HP pump sucking in air.
•
The machine cuts out
after being briefly oper-
ated three times.
Reset:
set the main switch to
"Off". Operate the pistol
for > 3 s.
•
Check the spray pistol.
•
Tighten the screws, re-
place the HP hose or
pipe.
•
Refill detergent.
•
Clean the filter
•
Correct leaking points.
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