Operation Manual

17
TROUBLESHOOTING
1. ELECTRICAL SYSTEM SAFETY
The machine is fitted with a thermal trip unit with manual reset.
The brush motor is reset by resetting the thermal trip unit located beneath the handlebars.
If the machine stops repeatedly in a short space of time, you must contact the Comac
technical assistance centre.
2. INSUFFICIENT WATER ON THE BRUSHES
1. Check the solution tank filter is clean.
2. Check the solenoid valve switch is on.
3. Check the quick connection is correctly inserted.
4. Check the cock regulation screws on the water outlet.
5. Check the vent pin on the solution tank cap is lowered.
3. THE MACHINE DOES NOT CLEAN WELL
1. Check the state of wear and tear of the brushes and, if necessary, replace them. The
brushes should be changed when the bristles are about 15mm long.
4. THE SQUEEGEE DOES NOT DRY PERFECTLY
1. Check the squeegee rubbers are clean.
2. Check the suction tubes are correctly inserted in their housing on the squeegee.
3. Check the distributor is clean.
4. Replace the rubbers, if worn.
5. EXCESSIVE FOAM PRODUCTION
Check that a low foam detergent has been used. If necessary, add a small quantity of
antifoam 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.