Thomas TWIN XT Manuale Utente

Troubleshooting

Faults/Malfunctions

Reason/Remedy

General (all functions)
The unit cannot be operated

• Are the mains connection cable, plug and socket intact?

• Before checking, unplug the mains cable; have any repairs done

only by authorised specialists

• Is the unit switched on? ➔ Check

Vacuum cleaning (dry vacuuming)
Dust escapes during vacuuming

• Is the Aquafilter system fitted according to the user manual?

• Is there sufficient water in the waste water container?

➔

Check

Suction power gradually decreases

• Is the EPA filter clogged? ➔ Clean the EPA filter

• Are nozzles, suction tube or hose blocked by coarse dirt?

➔

Stretching the hose during operation loosens the blockage;

remove blockage

• Is the housing cover properly closed? ➔ Check

Suction power is too low

• Is the ejector in the intake neck blocked? ➔ Disassemble and

clean or rinse out with water

• Is the EPA filter clogged? ➔ Clean the EPA filter

• Are nozzles, suction tube or hose blocked by coarse dirt?

➔

Disassemble and clean

• Is the electronic suction power control set to MIN? ➔ Set the

suction power to MAX

• Is the mechanical suction power control on the handle opened?

➔

Close the sliding button on the handle

Numerous water droplets on the

interior of the housing cover

• The Aquafilter system is probably filled with too much dust

➔

Clean the Aquafilter system, exchange the water

Faults/Malfunctions

Reason/Remedy

Shampooing
The unit switches off during

operation

• Is the waste water container full (float switch triggered)?

➔

Empty it

• Is the unit positioned tilted or was it moved very quickly around

a curve (float switch triggered)? ➔ Bring the unit to a level

position, switch unit on again

Water is expelled from the exhaust

opening of the unit

• Is the floater in the waste water container soiled and no longer

functional, in other words, it can no longer respond if the con-

tainer is filled? ➔ Clean the floater and container

An unusually large amount of water

collects in the suction chamber (a

few drops are considered normal)

• Are gaskets and sealed surfaces heavily soiled? ➔ Perform

cleaning

• Has the spray extraction insert been forgotten? ➔ Check

Unusually heavy foam forms in the

waste water container

• Was original THOMAS cleaning concentrate used? ➔ Replace

No cleaning fluid comes out

although the pump is switched on

• Is there cleaning fluid in the spray solution tank? ➔ Refill

• Is the spray nozzle clogged? ➔ Lay the nozzle in lukewarm

water for a while and then blow it out forcefully

• Is the tank connection hole clogged? ➔ Take out the fresh

water container and thoroughly vacuum out the tank connection

opening (connection between fresh water tank and housing)

using the crevice nozzle to remove any dirt deposits

Residual moisture is too high,

cleaning fluid is not suctioned up

properly

• Is the electronic suction power control set to MIN? ➔ Set the

suction power to MAX

• Is the mechanical suction power control on the handle opened?

➔

Close the sliding button on the handle

• Does the nozzle lie correctly on the floor? ➔ Set the nozzle

slightly more vertical for vacuuming