Troubleshooting - Formax FD 8400HS Maintenance Manual

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TROUBLESHOOTING

PROBLEM:
Shredder will not operate
Shredder capacity is de-
creased
Main power is functioning
but shredder won't operate
(Main PCB)
Main power is okay, but
shredder is not working
(electrical)
NOTE: Photo sensor should
be connected with the main
PCB during testing.
Main power is okay, but
shredder is not working
(mechanical)
CHECK THIS:
Check that the power cord is
plugged into an appropriate outlet
Check voltage of power outlet
Check the wiring between the fuse
connector on the PCB (page 12)
Check main power cable (page 11)
to see if it is properly connected to
the Main PCB (page 12)
Check the Main PCB's printed
circuit and wire disconnection of
transformer
Check the electrical contacts on the
main control switch
Check the outlet for correct voltage,
120V
Check wire connection between
photo sensor and Main PCB (pages
11 & 12). If there is no output signal
from Main PCB, shredder will not
operate.
Photo sensor could be dirty
Photo sensor sensitivity may need
to be reset
Check power relay contacts
Check motor current contact
Shredder may have overheated.
Check motor condenser for damage Replace motor condenser
SOLUTION:
Plug cord into outlet
If necessary, find an alternate outlet
with the appropriate voltage
Reconnect, if necessary
Follow directions for Auto Cleaning,
page 3
Reconnect, if necessary
If there is a problem with the circuit and/
or transformer, replace with new one
Reconnect, if necessary
Use different outlet, if necessary
Reconnect cable to sensor and Main
PCB
Remove photo sensor (page 11) and
clean it with a soft cloth
Sensitivity measurement distance
should be .4 inch (10mm). If distance
is less than .4 inch, replace the photo
sensor
Reconnect, or replace main PCB power
relay if necessary. If printed circuit is
damaged, replace the main PCB.
Open motor cover, clean contact and
adjust gap of contact (page 5)
Wait 5-10 minutes for motor to cool
down, then resume shredding
6

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