Fault Finding - Nilfisk-Advance N/G-6900A/C Operating Manual

ACTION WHAT/WHO
Instruct New operator
Check High pressure
hose
Check Pressure
gauge
Check Detergent
suction
Clean Water filter
Clean Fine sand-
filter
Check Machine for leaks
Check Oil level -
pump
Perform Oil change - pump
Adjust Oil burner
Clean Boiler/coil
Perform Descaling
Check Thermostat
Symptoms
The high pressure
cleaner does not start.
The high pressure
cleaner suddenly stops.
Motor hums when
starting.
The high pressure hose and
the pistol are vibrating.
32
CHECK LIST
WHEN/HOW OFTEN
Before operator uses
high pressure cleaner
During daily use
During daily use
Daily - by means of
detergent
Weekly/as needed
As needed
Every other month
During daily use
After 300 hours
operation - at least
once a year
Twice a year/
as needed
Yearly/as needed
For pressure increase
over 5 bar
Every other month

FAULT FINDING

Cause
Start/stop knob not
activated.
Cleaner is not connected
to the electric supply.
Fuse blown.
Phase is missing in the
electric plug.
Fuse blown.
Low voltage.
Motor too hot.
Working pressure too
high (nozzle dirty or
wrong nozzle).
Fuse blown.
Defect in the electric supply mains. Check the phases in electric plug.
Air in the pump.
Lack of water.
HOW
Let operator read
instruction guide
Leaks ? - call
service engineer
Too high/too low ? -
call service engineer
Lack of suction/leaks ? -
call service engineer
See maintenance
See maintenance
Leaks ? - call
service engineer
See maintenance
See maintenance
Call service engineer
Call service engineer
See maintenance
Temperature too high/low ?
- call service engineer
Remedy
Turn knob to position "1".
Put the power plug into the socket,
switch on the main switch.
Change it. If it still blows contact
service department.
Reconnect plug, as per the electric
diagram.
Change fuse. If it still blows contact
the service department.
Extension cable too long contact service
department.
Turn start/stop knob to position "0" and
wait till motor has cooled off. Re-start.
Clean/change nozzle (see "Technical
Data").
Change fuse. If fuse still blows or motor
still hums, contact service department.
Tighten suction hose again.
Clean suction filter. Open the water cock
completely.