Nilfisk-ALTO NEPTUNE 5-46 PE, Service Manual

Page: 40 / 94

E
Troubleshooting
NEPTUNE PE-DE_en_Ver.1.0_October 2010
40
Fault Cause Remedy
Green
LED and
red LED flash al-
ternately
⇒
Motor/machine over-
heated (MT has trig-
gered).
⇒
Thermal release B3 has
tripped.
⇒
⇒
24 Vac fine-wire fuse F2
has blown.
•
Set the main switch to
"Off". Allow the machine
to cool.
•
Work without an exten-
sion cable or use an ex-
tension cable with a lar-
ger cross-section.
•
Possibly a phase failure:
have the electrical con-
nection checked.
•
Correct the cause of the
fault (Chapter D.2.3.5)
and replace the thermal
release (Chapter F.7.4).
•
Correct the cause of the
fault and replace the
fine-wire fuse (Chapter
F.8.1).
Green
LED
flashes slowly &
red
LED flashes
fast
⇒
Fault in fuel or ignition
system, burner fault.
⇒
Flame probe (option)
sooted up.
•
See Chapter F.2.6 and
F.7. "Cold water" mode
is possible.
•
If this option is fitted, re-
move it and clean it.
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