VOLTA Sierra U4020 Instruction Manual Download Page 7

WARNING: On collection of proprietary carpet 
conditioning powders, plaster/concrete dust, it is 
recommended that the dust container is emptied 
and the cartridge filter is cleaned after every use. 
Some of the preparations contain substances which 
while left in the vacuum cleaner for extended 
periods could create damage.

Many air fresheners, household deodorants, 
sprays and polishes contain highly inflammable 
gas propellants. Because of this it is particularly 
important that these products are used strictly 
in accordance with the relevant manufacturers 
instructions. It is essential that none of the above 
products are sprayed directly into the vacuum 
cleaner or any of the filters, hose assembly or  
dust chamber.

TRouble shooTING ANd  

cusTomeR INfoRmATIoN

You can perform your own troubleshooting  
at home based on the checklist given below. 
However, if the problem persists, please contact 
Electrolux on 1300 365 305 (AUS)  
or 0508 730 730 (NZ)

PRoblem

PossIble cAuses

coRRecTIoNs

Vacuum cleaner does 
not start. 

Plug is not properly connected  
to the socket.

Check the plug connection or try another socket.

Thermal protector activated due  
to high temperature.

Press the On/Off button and wait 20-30 minutes  
for the motor to cool down.

Filter indicator light 
stays on. 

Dust container is full. 

Empty the dust container.

Filters are clogged. 

Clean or replace filters.

Reduction of suction 
capacity.

Suction hose is blocked. 

Clean the hose.

Nozzle is blocked. 

Clean the nozzle.

Dust container is full. 

Empty the dust container.

Filters are clogged. 

Clean or replace filters.

Hose is damaged or broken. 

Change the hose.

Over-heating. 

Dust container is full. 

Empty the dust container.

Filters are clogged. 

Clean or replace filters.

40933_U4020 Sierra_IFU_V2 OL.indd   7

2/07/12   10:50 AM

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