10
closed(resulting in runaway heat)reading means the control
board is faulty.Replace and rewire exactly as shown in the
schematic.
Finally,as explained in the last paragraph of the previous
section,using a multimeter,check terminals T6 andT7 on the
heat control board with their respective wires disconnected.
With the multimeter probes on these terminals and no power
to the board there should be an open circuit reading.Once
you power it up,it will close the circuit(the relay)and remain
closed until the temperature set point has been reached and
the circuit opens again.If,with no power to the board,you get
a closed reading(which would result in the relay staying
closed under power and subsequent overheating)the board
has failed and must be replaced and wired exactly as shown
in the schematic.
*Any questions as to the terms,procedures or references used in this guide,please call the Ledco service
dept. @ 800-937-9697
SECTION 3:TROUBLESHOOTING THE DRIVE SYSTEM
When troubleshooting the drive system,problems usually
fall under two descriptions;A)no drive,or B) intermittent drive
accompanied by strange clunking/ skipping or grinding
sounds.
A)NO DRIVE
1)
Basic.
Make sure the power cord is plugged in securely
to an appropriate power outlet,and completely inserted into
the receptacle at the back of the laminator.
Flip the switch labeled Forward/Reverse to the upper “I”,