Bona
®
CombiEdge™ Short/Long Manual
16
Emergency Situations (for the user)
PROBLEM
CAUSE
SOLUTION
Motor does not start
No power supply voltage
Check power supply or try on a different job-site
Insufficient voltage for unstable
connections
Contact an authorized Bona® dealer
Faulty switch
Contact an authorized Bona® dealer
Burnt rotor
Contact an authorized Bona® dealer
Faulty motor
Contact an authorized Bona® dealer
Insufficient motor speed
Excessive cable length or unsuitable
cross section
Use cables of suitable length and cross section
Unstable connections
Contact an authorized Bona® dealer
Worn-out carbon brushes
Replace them
Driving belt at a wrong tension
Set it at a right tension value
Burnt rotor
Contact an authorized Bona® dealer
Burnt rotor
Contact an authorized Bona® dealer
Insufficient cutting
Unsuitable or worn abrasive
Replace the abrasive
Driving belt at a wrong tension
Set it at a right tension value
Worn-out driving belt or pulleys or
bearings
Replace the driving belt or contact an authorized Bona®
dealer for pulleys and bearings replacement
The velcro backing disc wears-out too
quickly
Pressing on the arm while sanding
Avoid it: this over-warms the backing disc thus resulting in
an early wearing out.
The LED light blinks
Safety pause
Switch off the machine, unplug it from the power supply
and wait a while before reconnecting it
Damaged LED PCB
Contact an authorized Bona® dealer
Scratched work surface
Faulty abrasive
Replace the abrasive
Disc surface dirty, faulty or worn
Clean or replace the disc
Incorrect wheels adjustment
Correct the wheels position
Driving belt at a wrong tension
Set it at a right tension value
Worn-out driving belt or pulleys or
bearings
Replace the driving belt or contact an authorized Bona®
dealer for pulleys and bearings replacement
Scorching on work surface
Worn or not qualitative enough abrasive
Replace the abrasive
Excessive pressure on the disc
Check and adjust the wheels position - don’t press on the
arm while working
Insufficient dust collection
Dust bag more than 1/3 full
Empty the bag
Dust bag dirty or with blocked pores
Shake out the dirt and wash the bag.
Vacuum ducts and/or pipes obstructed
Clean air ducts
Worn-out bearings or suction fan
Contact an authorized Bona® dealer
