Troubleshooting - Alto TW 300 CAR Annex To Operating Instructions

TROUBLESHOOTING

Fault
Motor not running
‡
‡ Weak spraying force
‡ Weak suction force
10
Cause
> Power supply
interrupted
> Spray nozzle clogged
(Fig. 11a)
> Filter in fresh water
tank clogged (Fig. 8b,
9c)
> Fresh water tank
empty
> Pressure pump
defective
> Lid not fitted correctly
on dirty water tank
(air leaks)
> Nozzle clogged
> Suction hose
connections not
correctly fitted (air
leaks)
> Dirty water tank is full,
float switch interrupts
power supply (Fig. 12)
> Air filter clogged
(TW 300 S: Fig. 8c
TW 350: Fig. 9d)
> TW 350 only:
Dirty water drain hose
not closed (Fig. 10b)
Remedy
• Check mains lead,
plug socket, fuse
• Clean and/or descale
nozzle
• Clean
• Refill
• Call Alto technician or
authorised specialist
• Fit lid tightly; check
gasket
• Clean
• Check
• Empty dirty water tank
• Clean
• Close