HI. My ice maker is not working. WHen i hit the TEST button is makes ice but won't otherwise. I believe the arm that senses when ice bucket is full needs to be in down position but it won't move easily and i'm reluctant to force (it does cycle down then back up when i hit TEST button). I bought about 6 months ago and just hooked up ice maker last night. Probably under warranty but i'd prefer to resolve myself if easy. Any ideas?

Thanks so much!