In article , kitchenman
wrote:

look up the hood on www look up the fitting instructions, the fitters should
have left all the instructions with you, chase them up, if they bodged it
get them back to do it correctly

Twice now you have been offerred the help to sort out your posting. You are
still posting upside down and not trimming which is extremely antisocial and
irritating. Please sort it out as you will find that your contributions get
ignored otherwise.

http://www.allmyfaqs.com/faq.pl?How_to_post

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AJL