Access To Boiler Control Components; Pcb Fuse - Worcester GREENSTAR 24i Junior Installation, Commissioning And Servicing Instructions

Refer to figure 108.
1. Release the clip.
2. Move the lower exhaust connector up
▶ Remove the complete exhaust assembly.
1.
2.
Fig. 108 Release lower exhaust connection
Refer to figure 109.
1. Unscrew the plastic nut.
2. Remove the nut from the bottom of the boiler.
3. Rotate lever to release the return pipe.
1.
Fig. 109
Refer to figure 110.
1. Lift the heat exchanger up to clear.
2. Pull the heat exchanger forward from the case.
Fig. 110 Heat exchanger removal
6 720 802 047 (2013/05)
3.
2.
2.
1.
▶ 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 the 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 37.

6.8.12 ACCESS TO BOILER CONTROL COMPONENTS

1. Remove three screws.
2. Remove cover from control.
1.
Fig. 111 Removing the connection cover

6.8.13 PCB FUSE

▶ Remove fuse holder with fuse F1 (1) from the PCB and replace with a
new fuse.
Fig. 112 Fuse location (SMPS)
▶ Spare fuses are clipped into the underside of the electrical cover.
1. T2.5H 250V
1
Fig. 113 Spare fuses
SERVICE AND SPARES
2. 1.
1.
1
45