10
11 Fault diagnosis
The following simple checks may be performed by the operator.
Trouble
Reason
Remedy
Machine not working, neon indicator
not lit.
Lack of voltage/electrical supply.
Check fuse *, supply cord, plug
and socket outlet.
Machine not working, neon indicator
lit.
Switch interlock incorrectly
operated.
Motor overload cut-out operated.
Check operating procedure in
instructions.
Check brush/pad for good
condition.
Check correct liquid type &
quantity.
Check liquid dilution.
Allow motor to cool.
Vacuum unit not working, neon
indicator lit.
Motor overload cut-out operated.
Replace filter bag.
Clear blocked hoses /
connectors.
Machine wobbles or vibrates
excessively.
Brush/pad worn or damaged.
Pad not centered on drive disc.
Pad dirty.
Renew brush/pad.
Place pad in correct position.
Clean the pad.
* If the fuse blows several times, the machine should be checked by an authorised Service Agent.