44
SSB 400 W
SSE 400 W
SSB 480 W
SSE 480 W
Maintenance
3.4
Troubleshooting
CAUTION!
Always disconnect mains
plug/battery connection
before working on machine!
WARNING!
Only carry out maintenance and
repair work described in the
operating instructions.
Always leave servicing and
repair work, especially the
elimination of electrical faults,
to the Alto Customer Service
staff or to an authorised
specialist.
Fault
Machine does not run
Insufficient suction
Stripes form
Insufficient supply of
cleaning agent
Cause
> Mains/battery plug not
connected
> Fuse blown or earth-leakage
circuit-breaker tripped
> Overheating protection has
been activated
> Power supply interrupted
> Suction nozzle plugged
> Connection from tank cover
open
> Tank cover not properly
fitted or seal defective
> Suction sieve in tank cover
plugged
> Sealing cap on discharge
hose not properly screwed
on
> Suction lips dirty or worn
> Lines or nozzles plugged
with cleaning agent
Remedy
• Plug in mains/battery plug
• Check fuse or earth-leakage
circuit-breaker
• Allow motor to cool
• Have supply line checked by
electrician
• Eliminate plugging
• Connect suction hose
• Fit tank cover properly or
replace seal
• Rinse sieve with clean water
• Check seal, screw on cap
tightly, replace if necessary
• Clean or replace suction lips
• Flush fresh water tank and
line system
