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Page 14 FB8X Service Manual Rev. C, 9/28/10
T R O U B L E S H O O T I N G G U I D E
4
4 . 1 P o w e r P r o b l e m s
Possible Cause
Solution
Power Cord is not securely plugged in.
Check that the Power Cord is securely plugged into the
machine and into the outlet in the wall.
Electrical outlet is not functioning.
Plug the machine into another electrical outlet.
Machine is plugged into the wrong voltage outlet.
Use the correct voltage outlet to power the machine.
Wire Harness connections are loose.
Check that all wire connectors are securely
plugged into the Controller Assembly.
Blown Fuse.
Check fuses on the Controller Assembly and
replace if any are blown.
Failed Controller Assembly.
Replace the Controller Assembly.
•
NO POWER
Possible Cause
Solution
A 230v machine in plugged into a 115v outlet.
Plug the machine into a 230v outlet.
Failed Controller Assembly.
Replace the Controller Assembly.
• POWER FLICKERS ON AND OFF
Possible Cause
Solution
A 230v machine in plugged into a 115v outlet.
Plug the machine into a 230v outlet.
See the “NO POWER” troubleshooting table above.
• BACKLIGHT COMES ON, NOTHING ELSE HAPPENS
Possible Cause
Solution
A problem with the display.
See troubleshooting section 4.4 “Display Problems”.
• WHEN TURNED ON, THE MOTORS MOVE BUT NOTHING IS ON THE DISPLAY
Possible Cause
Solution
Short circuit in heaters.
Check the resistance of the Heaters. See Section
5.4.7 “Checking the Resistance of the Heater Power
Connectors”.
Short in the Controller Assembly.
If none of the heaters have shorted out, the
problem lies in the Controller Assembly. Replace
the Controller Assembly.
• FUSES BLOW REPEATEDLY
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