Replacing Electronic Control Board With Button Prints - Nespresso Essenza C91 Service Manual

Repair
Replacing electronic control board
with button prints
Tools:
­ Torx screwdriver Pin­TX10
The service engineer must be
earthed using an earthing strap!
Only touch button prints with dedi­
cated gloves to avoid oxydation.
Procedure:
1. Follow general disassembly (see page
17).
2. Detach prints of On/Off button (13) and
coffee button (14) from upper chassis (3).
3. Remove 2 screws (19) and lift cover (7) at
the front side to thread­out cables with
button prints.
4. Remove housing (301) from electronic
control board (300).
5. Unplug NTC connector and all wires from
electronic control board (300).
6. Remove 2 screws (20) and replace defect
electronic control board with button prints.
7. Assemble in reverse sequence.
Check for correct wiring of electronic
control board (see page 23).
Service Manual C91 / D91
20
Version 1.0 en