Interior components and diagram parts list

8.3Parts list

Item

Description

Reference

1

Front cover

8 705 431 246 0

 

 

 

2

Shield

8 705 506 817 0

 

 

 

3

Temp control knob

8 702 000 295 0

 

 

 

4

Draft Diverter

8 705 505 442 0

 

 

 

5

Exhaust pipe union Ø128

8 705 504 046 0

 

 

 

6

Angle bracket

8 708 003 192 0

 

 

 

7

Trade mark badge

8 701 103 135 0

 

 

 

8

Heat exchanger

8 705 406 275 0

 

 

 

9

Cold water pipe

8 700 715 061 0

 

 

 

10

Main burner NG

8 708 120 618 0

 

 

 

10

Main burner LP

8 708 120 619 0

 

 

 

11

Connector

8 705 209 062 0

 

 

 

12

Piezo clip (x10)

8 701 201 019 0

 

 

 

13

Sparking plug

8 748 107 089 0

 

 

 

14

Pilot gas pipe

8 700 707 369 0

 

 

 

15

Tube (x10)

8 740 609 002 0

 

 

 

16

Pilot screen

8 700 507 067 0

 

 

 

17

Gas valve LP

8 707 021 396 0

 

 

 

17

Gas valve NG

8 707 021 395 0

 

 

 

18

Throttle housing

8 705 502 067 0

 

 

 

19

Washer (x10)

8 701 004 044 0

 

 

 

20

Pilot injector LP

8 708 200 326 0

 

 

 

20

Pilot injector NG

8 708 200 327 0

 

 

 

21

Pilot valve

8 708 500 301 0

 

 

 

22

Poppet valve head (2) NG

8 708 500 358 0

 

 

 

22

Poppet valve head (3) LP

8 708 500 359 0

 

 

 

23

Electromagnet

8 707 201 028 0

 

 

 

24

Electromagnet cap

8 703 305 283 0

 

 

 

25

Valve operation housing

8 708 008 069 0

 

 

 

26

Guide plate

8 701 000 380 0

 

 

 

27

Gas pressure regulator LP

8 707 406 083 0

 

 

 

27

Gas pressure regulator NG

8 707 406 084 0

 

 

 

28

Water valve

8 707 006 344 0

 

 

 

29

Watervalve pushrod (10x)

8 703 204 051 0

 

 

 

30

Diaphragm (L)

8 700 503 084 0

 

 

 

31

Inlet water connection

8 700 306 110 0

 

 

 

32

Selector screw

8 708 500 304 0

 

 

 

33

Piezo igniter

8 708 108 051 0

 

 

 

34

Fixing bracket

8 701 302 181 0

 

 

 

35

Ignition lead

8 704 401 040 0

 

 

 

36

Thermocouple

8 707 202 083 0

 

 

 

37

Flue gas safety device

8 707 206 445 0

 

 

 

38

Washer (x10)

8 701 004 043 0

 

 

 

39

Heat exchanger washer

8 700 103 658 0

 

 

 

40

Threaded bushing

8 700 306 148 0

 

 

 

41

Connector

8 700 306 187 0

 

 

 

42

Water filter

8 700 507 059 0

 

 

 

43

Outlet Hose

8 700 703 139 0

 

 

 

44

Water connection clip

8 701 201 020 0

 

 

 

45

Plunger

8 703 502 039 0

 

 

 

46

Volumetric water governor

8 705 705 034 0

 

 

 

47

ECO

8 707 206 017 0

 

 

 

48

Temperature limiter

8 707 206 132 0

 

 

 

49

Venturi

8 708 205 279 0

 

 

 

50

Hot water pipe

8 700 715 178 0

 

 

 

51

Gas supply pipe

8 700 715 351 0

 

 

 

52

Cover

8 705 500 105 0

 

 

 

Table 5

26

6 720 608 034

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Bosch Appliances Model GWH 425 manual Parts list, Description Reference