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Service and spares
2
1
8
7
Fig. 98 Control panel detail
[1]
Mains voltage cable outlet
[2]
Fuse holder
[3]
HCM - Heating Control Module
[4]
Spare fuse
[5]
Low voltage cable outlet
[6]
Low voltage connectors
[7]
Diagnostic port (for Worcester Bosch service engineers only)
[8]
Mains voltage and earth connectors
PCB fuse
The fuse and holder (2) are located next to the high voltage connectors
and the spare fuse (7) is located on the back of the installer access
cover.
To remove the fuse:
▶ Pull the fuse holder (2) up.
▶ Replace the fuse and re-insert the fuse holder.
7.8.18 Replacing the Heating Control Module (HCM)
▶ Press down on the retaining clip on the module and slide out from the
cover.
▶ Disconnect the HCM from the connector.
▶ Connect the new HCM and slide back into the retainer until the
module is secure.
7.8.19 Replacing the control unit
The control unit is supplied complete in the plastic
housing. The complete unit must be replaced.
▶ Reconnect the boiler cable edge connectors to the board.
▶ Reconnect the cables removed earlier in to the 230V connector
block.
▶ Replace the covers removed earlier.
▶ Hold the control panel at approximately 60° to the horizontal and re-
engage the panel with the hinges.
▶ Re-attach the support strap to the new control unit.
50
1.
2.
4
3
5
6
Greenstar Ri Compact
ErP
6720813282 (2015/07)
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