Bosch Worcester Greenstar Ri ErP + Series - Access to Electrical Control Panel; PCB Fuse and Code Plug; Pcb

SERVICE AND SPARES
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7.8.14 ACCESS TO ELECTRICAL CONTROL PANEL
▶ Remove three screws retaining the control cover (1).
▶ Remove the control cover[1].
Fig. 90 Electrical control panel access
7.8.15 PCB FUSE AND CODE PLUG
PCB fuse and spare fuse
▶ Remove fuse holder with fuse F1 (1) from the control and replace
with a new fuse.
Code plug
▶ Gently pull the code plug from the socket (2).
▶ The code plug should be left attached to the frame of the appliance by
its plastic safety thread.
Fig. 91 PCB fuse and code plug location
7.8.16 PCB
▶ Remove two screws securing the control.
▶ Pull the control forward.
▶ Lower the control to align the slots at the top of the control with the
lugs on the appliance framework.
▶ Hang control on two lugs on appliance framework.
▶ Unscrew the three screws in the control panel.
▶ Remove the connections cover and disconnect all electrical
connections from the control.
▶ Gently pull the code plug from the socket (2), Figure 91.
▶ The code plug should be left attached to the frame of the appliance by
its plastic safety thread.
▶ Remove the control from the appliance.
▶ Remove the four screws (3) retaining the rear panel (1) of the
control.
▶ Remove the rear panel (1).
▶ Remove the printed circuit board.
Fig. 92 PCB
▶ Refit the code plug [4] into the new control board.
▶ Re-assemble in reverse order.
A spare 2A fuse (3) for F1 is clipped onto the inside of
the cover.
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NOTICE: CODE PLUG
▶ Ensure that the code plug is fitted to the new control.
▶ The appliance will indicate an error and will not
function correctly if the code plug is not fitted.
NOTICE: CO/CO
2
▶ After completing the service of the control, the CO/
CO
2
must be checked and set to the limits shown in
“Setting the air/gas ratio” in section 7.6.
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