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