Replacing Thermoblock - Nespresso Essenza EF 470 Service Manual

Repair

Replacing thermoblock

Tools:
- Torx screwdrivers T10, T30
- Open-ended spanner 10 mm AF
- Torque wrench
Procedure:
1. Follow general disassembly (see page 15).
2. Remove 3 screws (2) and separate thermo-
block (40) with support (40) from chassis.
3. Remove screw M6 x 25 and separate
thermoblock from its support.
4. Remove screw (38) and separate fine wire
fuse (900) from thermoblock.
5. Remove electronic housing (28).
6. Unplug NTC connector from electronic
control board (28).
7. Remove NTC (43) from thermoblock.
8. Remove clips (13) and hose connectors
(16, 26) from thermoblock.
9. Remove ground wire and electrical
connections from thermoblock.
10. Replace thermoblock and nut M6.
11. Assemble in reverse sequence.
Use a torque wrench (90 - 110 Ncm)
to tighten NTC temperature sensor
(43) with spring washer.
Check that there is a clearance of
1-2 mm between thermoblock and
support after assemblage.
Service Manual EF 470 / EF 471
28
16
13
26
38
39
1 6
M6 x 25
38
40
43
900
40
2
M6
Version 1.1 en