Repair

Electronic control board, wiring diagram - Europe (230V / 50 Hz)

1)Heat sink

2)Print for button "large cup" with LED

3)Print for button "small cup" with LED

4)Flow meter

5)NTC temperature sensor

6)Fine-wire fuse on thermoblock

7)On/Off switch

8)Fine-wire fuse on pump

Service Manual EF 473 / EF 474

Electronic Main Board

Print “large cup”

Print “small cup”

1

 

 

 

 

 

2

3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flow meter

 

 

 

 

 

 

 

4

 

 

 

 

 

 

Thermoblock

 

 

 

 

 

 

5

6

 

Pump

Neutral

 

 

 

NTC

T 167°C

Heat

Line

 

 

GND

 

 

 

 

 

 

 

 

Pump

 

 

8

1a

2a

7

 

 

 

 

T 128°C

 

 

 

 

 

 

On/Off switch

 

 

 

 

1

2

 

 

 

 

Mains Plug

 

 

 

 

 

L N PE

 

 

 

23

 

 

 

 

Version 1.0 en

Page 23
Image 23
Nespresso EF 473, EF 474 manual Pump