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Service Manual EF 347 / EF 348 enVersion 1.0
General Safety Notes
Risk of fatal electrical shock and fire!
Mains voltage inside the coffee
machine.
• Unplug appliance before cleaning.
• Never clean wet or immerse plug,
cord or appliance in any fluid.
• Disconnect the mains plug before
disassembly - the appliance must be
free of voltage.
As an additional safety measure, the use of a
residual current device (RCD), also called a
ground fault circuit interrupter (GFCI), in the
repair centre is highly recommended.
This device does not protect against
electrical shock due to contact with
both circuit conductors.
Use a GFCI with a trip level of 4 - 6 mA
(USA) resp. a RCD with a trip level of
15 - 30 mA (Europe). A trip level
above 30 mA provides only very
limited protection against harm from
an electric shock.
Danger of burns!
Hot parts and water under pressure
inside the coffee machine (particu-
larly in the thermoblock).
• Let coffee machine cool down before
cleaning or disassembly.
Example illustrations of typical devices:
1) RCD protected socket-outlet
2) Plug-in RCD unit
3) GFCI socket
4) Plug-in GFCI
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