Where can i find the serial number to my Ferroli Optimax HE 31C boiler? Thanks.

Nigel, November 2009

there should be a barcode sticker at the top of the the last two pages of your maintenance manual page heading gas boiler commisioning checklist your installer will have filled these pages in and put the sticker at the top it will also have been on the warranty card you had to fill in and send to ferroli

vicki, December 2009

what is a number 12 fault

steve, December 2009