Access To Boiler Control Components; Pcb Fuse; Access To Pcb - Worcester Greenstar i Series Installation, Commissioning And Servicing Instructions

1. Refer to figure 104 and lift the heat exchanger up to clear.
2. Pull the heat exchanger forward from the case.
Fig. 104 Heat exchanger removal
▶ Reassemble and check combustion as stated in the gas conversion
section. 6.6.
NOTICE: CO/CO CHECKS
2
▶ If the joint between the Air/Gas manifold and heat
exchanger is disturbed sealing gasket must be
replaced.
▶ After completing the service of the appliance, the CO/
CO must be checked and set to the limits shown in
2
"Setting the air/gas ratio" on page 36.

6.8.11 ACCESS TO BOILER CONTROL COMPONENTS

1. Remove three screws.
2. Remove cover from control.
1.
Fig. 105 Removing the connection cover (SMPS)
6 720 804 532 (2012/09)
2.
1.
2. 1.
1.

6.8.12 PCB FUSE

▶ Remove fuse holder with the fuse F1 (1) from the PCB, change the
fuse and replace in the PCB.
Fig. 106 Fuse location (SMPS)
▶ Spare fuses are clipped into the underside of the electrical cover.
1. T1.6L 250V
1
Fig. 107 Spare fuses

6.8.13 ACCESS TO PCB

▶ Refer to figure 108 and disconnect all electrical connections from the
control.
1. Remove five screws retaining the rear panel of the control.
2. Remove the rear panel.
1.
1.
1.
Fig. 108 PCB access
REFITTING THE CONTROL BOARD COVER:
▶ Ensure that all wires are fully within the control board.
▶ Align the front right hand corner of the cover with the front right hand
corner of the control board.
▶ Align the rear right hand.
▶ 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
1
1.
2.
1.
43