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Service / Repair
Electrical Troubleshooting
Before any maintenance work is carried out both electrical and air supplies must be locked in
the OFF position or the mains lead removed (508DT).
Faults on electrical & electronic modules are rare but loose plugs and terminals are responsible for most
electrically based failures. A logical approach to detecting the fault begins with a complete appraisal of the
faults and symptoms.
Much time can be wasted looking in the wrong areas for a problem that, when found, was obvious.
See also section dealing with Electrical circuit information.
Only a qualified electrical technician may work on any parts carrying mains voltage and should
be responsible for ensuring that the machine is in a safe condition before allowing services to be
restored.
Remove the 7 self-tapping screws retaining the rear panel.
Check all the connections to the inlet receptable, the fuse holder and the power switch
located in the inside back of the machine. The fuse is 20MM, 12.5A .
A- Checking the back of the machine
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