162Service Manual – SC401, SCRUBTEC 344 40 - Recovery System
Troubleshooting
Trouble Possible Causes Remedy
The vacuum motor will not turn
on
Wiring between Main machine controller (EB1)
and vacuum motor (M2) damaged
Repair
Main control board (EB3) faulty Replace
Vacuum motor fuse (F2) faulty Replace
Vacuum motor (M2) faulty Check the amperage
Suction of dirty water is
insucient or non-existent
Activation of automatic oat shut-o Drain the recovery tank
Debris collection lter dirty Clean
Vacuum grid with automatic oat shut-o dirty Clean
Tank cover not correctly positioned Adjust
Tank cover seal damaged or not working
correctly
Clean or replace
Vacuum motor container dirty Clean
Vacuum seals damaged or not working
correctly
Repair or replace