Bosch Greenstar 12i Service Manual download pdf (Page 56)

SERVICE AND SPARES

6 720 644 743b (2011/08)

6.8.11 ACCESS TO BOILER CONTROL COMPONENTS

1. Remove three screws.

2. Remove cover from control.

Fig. 104 Removing the connection cover

6.8.12 PCB FUSE

B Remove fuse holder with fuse F1 (1) from the PCB

and replace a new fuse.

Fig. 105 Fuse locations

B Spare fuses are clipped into the underside of the

electrical cover.

1. T1.6L 250V

2. T2.5H 250V

3. T500L 250V

Fig. 106 Spare fuses

6.8.13 TRANSFORMER/PCB

Refer to figure 107.

B Disconnect all electrical connections from the

control.

1. Remove five screws retaining the rear panel of the

control.

2. Remove the rear panel.

3. Remove the transformer cover.

Fig. 107 Transformer/PCB access

REFITTING THE CONTROL BOARD COVER:

B Ensure that all wires are fully within the control board.

B Align the front right hand corner of the cover with the

front right hand corner of the control board.

B Align the rear right hand .

B Holding the cover level, slide the cover onto the

control board, ensuring that the incoming cables, at

the top, are held clear.

6720643895-40.1Wo

6720643895-74.1Wo

S LR

FSFR NP LP

Code Plug

Fan

Harness

S11

2 5 A 230 V AC

Harness

S13

1 6 A

S12

0 5 A

ST10

ST8

ST6

ST19

Pump

Harness

Main

Harness

6720643895-75.1Wo

6720643895-76.1Wo

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Bosch Greenstar 12i Service Manual Page 56

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