TROUBLESHOOTING
INSUFFICIENT WATER ON THE BRUSH
1. Check that the tap – located beneath the symbol – is turned on
2. Check there is water in the solution tank
3. Check that the solution tank filter cartridge is clean
THE MACHINE DOES NOT CLEAN WELL
1. Check the state of wear and tear of the brush and, if necessary, replace it (the brush must be
replaced when the bristles are about 15mm long)
2. Use a different kind of brush to the one fitted as standard. For cleaning floors where the dirt is
particularly resistant, we recommend the use of special brushes supplied upon request and according
to needs (see “CHOOSING AND USING THE BRUSHES”).
THE SQUEEGEE DOES NOT DRY PERFECTLY
1. Check the squeegee rubbers are clean
2. Adjust the inclination of the squeegee (see "SQUEEGEE" under “MACHINE PREPARATION”)
3. Check the suction tube is correctly inserted in its housing on the recovery tank
4. Check the inner filter of the recovery tank is not dirty and, if necessary, clean it thoroughly
5. Disassemble the entire suction unit and clean it
6. Replace the rubbers, if worn
7. Check the suction motor switch is turned on
8. Check wheel adjustment
EXCESSIVE FOAM PRODUCTION
Check that a low foam detergent has been used. If necessary, add a small quantity of anti-foam liquid to
the recovery tank.
Remember that, when the floor is not very dirty, more foam is generated. In this case the detergent
solution should be more diluted.
ELECTRIC SYSTEM SAFETY (E versions)
The machine is fitted with a thermal trip unit with manual reset, located in the rear part of the machine
near the main switch. The brush motor is reset by pressing the thermal trip unit button. If the machine
stops repeatedly in a short space of time, you must contact the COMAC technical assistance centre.
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