Foredom K.1050 - Manual (Page 11)

Trouble Check Points Corrective Actions
Make sure that the Power Cord is correctly Correctly plug in the Power Cord.
plugged into the outlet and the control unit.
Check if the fuse is blown. Replace only with the recommended fuse. If
the fuse blows again, repair or replace the unit.
Make sure Power Switch is working properly. Replace the Power Switch.
Make sure Motor Cord is plugged in properly. Correctly plug in the Motor Cord. If error code
continues, replace the Motor Cord.
Check if the Collet Chuck is open. If open, close the Collet Chuck. If error code
continues, repair or replace the handpiece.
The circuit of the Control Unit is defective. Repair or replace.
Check if the Control Unit has been used at a Turn off the Power Switch for about 10 mins.,
high load and for a long time. then restart the Control Unit. If error code
continues repair or replace the control unit.
Check for high workplace temperature. If too warm, move the Control Unit to a loca-
tion with an indoor temperature of 32~100ºF.
Check control air openings for blockage. Unblock air opening.
Temperature sensor is defective. Replace the sensor.
Check if the Control Unit has been excessively Press the Auto Cruise Switch or turn off, then
used under a high load condition.
press the Motor On/Off Switch. If error code
continues, repair or replace Control Unit.
Check if the Collet Chuck is open. If open, close it by turning the Chuck Handle.
Make sure the shaft of the Motor Handpiece If it cannot be rotated with the chuck closed,
can rotate freely. the spindle of the Motor Handpiece is defec-
tive. Repair or replace it.
The circuit of the Control Unit is defective. Turn off the Power Switch for about 10 mins.,
then restart the Control Unit. If error code
continues repair or replace the control unit.
Check if Foot Pedal Cord is properly plugged in. Plug in the Foot Pedal Cord correctly.
The Hand/Foot Selector Switch is set to “Hand”. Set the Hand/Foot Selector Switch to “Foot”.
Foot Pedal still does not work. Repair or replace it.
The ball bearings are defective. Repair the Motor Handpiece.
Make sure that the Collet Chuck is free of dirt. Thoroughly clean the Collet Chuck.
The rotation speed is too high. Reduce the rotation speed. Refer to
Allowable Rotation Speed chart.
Check if the bur shaft is bent, or bur is out Replace with a new bur.
of round or unbalanced.
Make sure that the ball bearings are in Repair or replace the Motor Handpiece.
good condition.
Caution: Repairs should be performed only by qualified personnel.
Motor
Does
Not
Run
Power
Lamp
Does Not
Light
Foot Pedal
Does Not
Work
Motor
Vibrates
Excessively
and is
Unusually
Noisy
Handpiece over-
heats or is noisy
while operating
at no load
“1E”
displayed
“2E”
displayed
“4E”
displayed
“5E”
displayed
“6E”
displayed
“7E”
displayed
Troubleshooting
NOTE: When an error reading is displayed, turn off the power switch for a few seconds and then turn it on again. If
“5E” is displayed wait for about ten minutes. If the error reading re-appears, follow the Troubleshooting Chart below.
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