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18

Repair

ServiceManualC91/D91 enVersion1.0

Replacingthermoblock

Tools:

 TorxscrewdriversPinTX10,TX20

 Openendedspanner9mmAF

 Torquewrench

Procedure:

1. Followgeneraldisassembly(seepage17).

2.

Remove3screws(19)andseparatether

moblockassemblyfromupperchassis(3).

3. Removescrew(222)andseparatether

moblockfromitssupport(216+217).

4. Remove2screws(224)andseparate

thermalfuses(partsofcordset304)from

thermoblock.

5. RemovePCBhousing(301).

6. UnplugNTCconnectorfromelectronic

controlboard(300).

7. RemoveNTCtemperaturesensor(219)

fromthermoblock.

8. Removeclips(228)and2 hoseconnec

tors(211+212)fromthermoblock.

9. Removegroundwireandelectrical

connectionsfromthermoblock.

10. Replacethermoblock(215).

11. Assembleinreversesequence.

Useatorquewrench(140160Ncm)

totightenNTCtemperaturesensor

(219)withspringlockwasher(220).

Nespresso Essenza C91 User Manual

Questions and Answers: