If you have pulled the six screws from inside the unit that hold the outer side plates on then your side plates are stuck...a common occurrence. Wiggle, pry, twist...eventually with enough force the plates will come off.

If you need additional assistance or parts please add a comment to this post or contact me thru our website at www.arrowpools.net. We are a Dolphin service center and stock just about every part they offer.

John