10. Refit the insulating shell on the low-loss header.
11.3 Replacing the 6.3 A fuses on the electrical terminal blocks
Danger of electric shock
Before any work, switch off the mains supply to the boiler.
1. Pivot the fuse-holder socket N towards you.
Fig.192
MW-4000313-1
10
Fig.193
MW
-3
0
0
0
2
2
8
-0
1
1
11 Maintenance
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