Ledco premier 4 series Diagnostic Manual - Premier 4 Series Laminator
PREMIER 4 SERIES LAMINATOR
REPAIR PROCEDURES
Page 6
1. Check power cord.
a.
Power cord must be securely inserted into the wall outlet (110v AC).
b.
Power cord must be securely inserted into the receptical on the back of the laminator.
2. Check heat switch position.
Heat switch must be in the up or "I" position as denoted by the label markings nest to switch.
3. Remove right or left plastic housing.
a.
Disconnect the power cord.
b.
Remove the 11 screws from the plastic housing using a phillips head screw driver.
c.
Remove the cam shaft handle using a 1/8" allen wrench (right side only)
d.
Remove speed control knob using a small straight blade screwdriver (right side only)
e.
Remove the plastic housing.
4. Check heat control fuse.
The heat switch will illuminate red when engaged, indicating power is getting to the system.
If the switch does not light up, check the heat control fuse as follows:
a.
Remove the right plastic housing as described in 3 above.
b.
Examine the 1.5 amp heat system fuse located to the right of the wiring terminal block
c.
If the fuse appears discolored and the element inside
is broken, replace it with a new 1.5 amp fuse.
5. Check for heating wires that are disconnected, broken or shorting out.
a.
Remove the right plastic housing as described in 3 above.
b.
Examine all wires and connectors for the heat system.Use the wiring diagram included for reference
(1.) Power cord to terminal block
#14 Black wire from power cord to terminal block.
#14 White wire from power cord to terminal block.
(2.) Heat Switch
Check all wires and connections from back of heat switch to the terminal
block,fan switch and 1.5 amp fuse.
(3.) Heat Control Board Wires
Check the 4 wires and connections coming from the heat control board
(thru the side panel from inside the machine) to the terminal block and 1.5 amp fuse.
(4.) Heaters
Check 2 biege colored wires and connections from Bottom Heater Cartridge to terminal block,
and the 2 biege colored wires and connections from Top Heat Cartridge to the quick
disconnects, where they change to black and white wires,to the terminal block
(5.) Digital Display
Check ribbon cable wires and plastic harness connector at the back of digital display
(6.) Heat Sensor Wires
Check 2 thin,black Heat Sensor wires and connectors coming from the top heat shoe to
the quick disconnects where they change to blue and yellow wires respectively.
c.
If a wire is disconnected, re-connect exactly as shown in the wiring schematic.
6. Check heat switch.
a.
Remove the right plastic housing as described in 3 above.
b.
Engage the switch.
c.
Check continuity of the switch with a multimeter.
(1.) Disconnect the two inner most terminals of the heat switch (# 5 and # 6))
(2.) Place one probe on the # 5 terminal and one probe on the # 6 terminal of the heat switch
d.
If there is no continuity, replace the switch (Part #PRS311) and rewire
exactly as shown in the schematic.