Repair; General; Basic Repair Instructions; Safety Information - Nespresso Momento 120 Service Manual

11 R e PA I R
Abbreviations for Component Support Versions
Two abbreviations are used to identify if a reference applies to the metal component
support (MCS) or the plastic component support (PCS) of the milk module.

11.1 General

The disassembly/repair procedures are presented as step by step instructions:

11.2 Basic Repair Instructions

• Hold a towel ready to wipe away leaking water.
• Parts of the chassis and components of the coffee machine are connected screw-
less with latches. When loosening these connections, proceed with care and
patience to avoid causing any damage.
• With each disassembly and repair,
- accomplish an internal cleaning,
- perform a protective earth (PE) continuity test (→ p. 205),
- perform a protective insulation test (→ p. 207),
- perform a functional test of the milk module (→ p. 209).
Only use original spare parts from your official supplier for maintenance
and repair work.

11.3 Safety Information

Risk of fatal electrical shock and fire!
Mains voltage inside the coffee machine.
• Unplug the appliance before cleaning.
• Never clean, wet or immerse plug, cord or base station in any fluid.
• Disconnect the power plug before disassembly – the appliance must be
free of voltage.
Risk of damage!
Changing wiring arrangement arbitrarily during reassembly can cause
electromagnetic interferences,
-
- squeezed wires and insulation defects,
insulation problems if low and high voltage wires are not separated,
-
- damage to the electronics.
Protective measures:
• Refer to special wiring instructions in assembly tips.
• Refer to the wiring diagrams when reconnecting wires (→ p. 200).
• Make sure that wires do not touch hot parts – use existing cable clips.
Version 1.4 EN
Repair > General
Momento 120 Service Manual
this chapter
contains special
safety and assembly
notes. Disregarding
them may lead to
injuries and damages.
Before any
intervention to the
machine, clean and
sanitize your hands
and tools. After the
intervention started,
sanitize your hands and
tools frequently.
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