Omnivent Exractor Fan

[Alanbrooke]

I'm trying to remove the Blind Housing from the Omnivent Extractor in my Buccaneer Argosy. I've removed the two screws and the forward part of the housing drops down but the rear part seems stuck in position. It is possible to slide the housing about 5mm but that's all. I don't want to damage the housing by forcing it. Anybody got any ideas about how to remove it?
Thanks
Alan

 

[Alanbrooke]

Just for the record, I got advice from Omnivent. There are little plastic clips which engage in the Blind Housing and have to be pried apart to remove the Blind Housing. The whole thing needed a thorough cleaning after 7 years' use!
Alan