27
TRUCK BOOSTER
Original Instructions
E1
E4
E5
E6
Symptom
Reason
Action
> Water inlet fi lter clogged up
• Clean fi lter (see sect. 6.3).
No working pressure
> Nozzle clogged up
• Clean nozzle (see sect. 6.4).
> No inlet water
• Check that the shut off cock
of the water inlet is open.
Check that the water supply
meets the requirements
(see
section
3.4).
> High-pressure cock of outlet
• Close all high-pressure
point open
cocks not in use.
Machine starts and
> Leaky hose/
• Repair leak.
stops
pipeline/spray
handle
7.2 Error messages
If your TRUCK BOOSTER does not heat the water although the white “Heating” push button (5) has
been activated, the “overheat melting fuse” has blown. This fuse is located within the machine and
MUST ONLY be exchanged by an Nilfi sk-ALTO service technician.
Error
Message
(red STOP light fl
ashing)
Reason
Action
Illegal sensor comb.
> Lack of water
• Check your water supply
– open?, suffi cient pressure?
• Check and clean inlet fi lter,
section
6.3.
> Declutching of thermal relay
• Check ventilation.
or motor winding protector
• Check fuses.
> Defective or mal-adjusted
• Call Nilfi sk-ALTO service.
fl ow sensor / pressure switch
Flow failure
> Defective or mal-adjusted
• Call Nilfi sk-ALTO service.
fl
ow
sensor
No fl ame detected
> No fl ame is detected when it
• Check your fuel supply,
should be present
and refi ll is nescessary.
> Fuel fi lter clogged
• Call Nilfi sk -ALTO service.
> Flame sensor soothed or
• Call Nilfi sk -ALTO service.
defective
Illegal fl ame detected
> Flame detected when it should • Flame sensor not mounted
NOT be present
in place. Mount sensor.
> Flame sensor defective
• Call Nilfi sk -ALTO service
Red STOP light fl ashing
> Shortage of oil in h.p. pump
• Top up with oil.
Display shows hour counters
