Bosch 425HN Referenzhandbuch

Service bulletin

Replacing control box

CT-27 | 1600H, 425HN

Tools needed:

Phillips head screwdriver

Needle-nosed pliers

Removing ignition unit

1. Close installer supplied cold water shut off valve to water heater.

2. Remove front cover of heater. (See instructions in the installa-

tion manual)

3. Remove single ignition wire connection (to spark electrode)

from upper left corner of ignition unit. Unclip wire from bracket

on top of ignition unit (425HN models only). (See Fig. 1)

4. Remove multiple wire connector from lower right corner of

ignition unit by gently pulling outwards with needle-nosed pliers.

(See Fig. 1)

5. Remove screw with ground wire connection from upper right

corner of ignition unit Metal bracket and ignition unit will drop

out of heater.

6. Remove ignition unit from metal bracket.

Control box (425HN model shown) Figure 1

Installing ignition unit

1. Insert tab on lower left of ignition unit into slot in lower left of

metal bracket.

2. Mount ignition unit with bracket to heater by inserting screw

into upper right hand corner.

Note: Feed screw through ground wire eyelet with washer before

threading through ignition unit to heater. (See Fig. 1)

3. Press multiple wire connector into lower right of ignition unit.

4. Push ignition wire on to single terminal in top left corner of

ignition unit. Clip wire into bracket on top of ignition unit

(425HN models only).

5. If a replacement hydro generator (black and red lead wires) was

sent as a temporary solution for ignition failure, please reinstall

original hydro generator, part# 8707406071 (blue and brown

lead wires).

6. Install front cover, open cold water supply and return heater to

service.

1 2 |TWH-G2-06 | 2400E, 2400EO, 635ES, 635ESO, 250SX, 250SXO Service bulletin

Data subject to change without notice | Printed in the USA | 1.2007 Bosch Water Heating

BBT North America Corporation

Bosch Group

Bosch Water Heating

340 Mad River Park

Waitseld, VT 05673

Telephone 800-642-3111

Fax (802) 496-6924

techsupport@boschhotwater.com

Dieses Handbuch passt für folgende Modelle

2

Andere Bosch Boiler Handbücher

Bosch

Bosch Therm 8000 S GWHC 27 CTDE Bedienungsanleitung

Bosch

Bosch C1210ES Referenzhandbuch

Bosch

Bosch WR430-7K Montageanleitung

Bosch

Bosch TR1000 4 T Bedienungsanleitung

Bosch

Bosch NG Bedienungsanleitung

Bosch

Bosch Tronic 3000T ES 2.5 Bedienungsanleitung

Bosch

Bosch BBT NORTH AMERICA AquaStar 240FX Service-Handbuch

Bosch

Bosch TR8500 Series Bedienungsanleitung

Bosch

Bosch Stora SWDP 200-2 Kurzanleitung

Bosch

Bosch 10P Handbuch

Bosch

Bosch RDE 1821415 Bedienungsanleitung

Bosch

Bosch GWH 2400 ES NG Bedienungsanleitung

Bosch

Bosch Therm 4300 Series Leitfaden

Bosch

Bosch C 950 Betriebsanleitung

Bosch

Bosch Stora WP 400 PK Kurzanleitung

Bosch

Bosch TR5000 Series Bedienungsanleitung

Bosch

Bosch 715ES Referenzhandbuch

Bosch

Bosch TR3500T Series Bedienungsanleitung

Bosch

Bosch TRONIC 4000 C Bedienungsanleitung

Bosch

Bosch GWH C 920 ES Referenzhandbuch

Bosch

Bosch ED5-2S Bedienungsanleitung

Bosch

Bosch 125B LP Bedienungsanleitung

Bosch

Bosch TR7000R 24/27 DESOB Bedienungsanleitung

Bosch

Bosch 125B LP Bedienungsanleitung

Beliebte Boiler Handbücher anderer Marken

Kenmore

Kenmore 153.582400 Bedienungsanleitung

Applimo

Applimo Edel AIR Bedienungsanleitung

STIEBEL ELTRON

STIEBEL ELTRON Eltronom SHU 5 S Bedienungsanleitung

clage

clage E-Mini Series Bedienungsanleitung

Toyotomi

Toyotomi Oil Miser OM-180 Bedienungsanleitung

Bradford White

Bradford White EF Series Bedienungsanleitung

Eccotemp

Eccotemp 40-H Bedienungsanleitung

Dimplex

Dimplex ECSd125-580 Leitfaden

Dux

Dux 32FCR6N Bedienungsanleitung

Toyotomi

Toyotomi Oil Miser OM-148 (Type D) Fehlerbehebungshandbuch

Noritz

Noritz N-132M Gebrauchsanweisung

TESY

TESY GCV7/4S 10047 Technisches Datenblatt

A.O. Smith

A.O. Smith Gphe 50 Bedienungsanleitung

Koryo

Koryo KWHZF15Y Bedienungsanleitung

Pentair

Pentair PSC-14-4-02 Bedienungsanleitung

GE

GE 40M06AAG Montageanleitung

Thermor

Thermor AEROMAX SPLIT 2 Bedienungsanleitung

American Hometec

American Hometec AHQ-B03X Bedienungsanleitung