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Service Manual EF 473 / EF 474 enVersion 1.0
Electronic control board, wiring
diagram - Japan (100 V / 50-60 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
Electronic Main Board
NTC
Thermoblock
T 167°C
Pump
T 128°C
Mains Plug
Heat
Pump
Flow mete
r
Neutral
Line
L
N
On/Off switch
Print “large cup”
Print “small cup”
1
2
1a
2a
1
3
2
5
4
7
6
8