Access To Boiler Control Components; Pcb Fuse; Transformer/Pcb - Worcester GREENSTAR 24i Junior Installation Instructions Manual

6.8.11 ACCESS TO BOILER CONTROL COMPONENTS

1. Remove three screws.
2. Remove cover from control.
1.
Fig. 102 Removing the connection cover

6.8.12 PCB FUSE

B Remove fuse holder with fuse F1 (1) from the PCB
and replace with a new fuse.
Fan
Harness
ST10
S11
2 5 A 230 V AC
2
3
Fig. 103 Fuse locations
B Spare fuses are clipped into the underside of the
electrical cover.
1. T2.5H 250V
2. T500L 250V
3. T1.6L 250V
3
1
2
Fig. 104 Spare fuses
6 720 644 741a (2010/10)
1.
2.
1.
Pump
ST19
Harness
B
B
4
2
FR FS NP LP
1
ST8 A
F
ST6
DV
Harness
1
Main
Harness
S12
0 5 A
S13
1 6 A
Code Plug

6.8.13 TRANSFORMER/PCB

Refer to figure 105.
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.
1.
1.
1.
3.
Fig. 105 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.
SERVICE AND SPARES
2.
1.
1.
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