CONTENTS
6. Maintenance
(authorised personnel)
6.1 General warnings
pag.
30
6.2 Boiler inspection
pag.
30
6.3 Accessing the boiler
pag.
31
6.4 Draining the central heating system
pag.
32
6.5 Wiring diagrams
pag.
33
6.6 Troubleshooting
pag.
39
6.7 Diagnostics
pag.
40