Maytag washer won't move to agitation mode

Brand: maytag
Model Number: LSE7804ACE
Main Symptom: won’t move into agitation mode
What happens & when: fills but then stops - thought it was the water pressure switch but machine will fill at different levels if a large or small load is selected. Per diagram 11 for this model: do I need the “Lid Check Switch" item 17 of the “Lid Switch Assembly w Fuse” item 6 ? How to tell ? Also - the unit is a stack combo washer/dryer - I can’t tell where these parts are situated - do I need to remove the stack dryer to replace these items ? Grateful !
Model Number: LSE7804ACE
Main Symptom: Won’t go into agitation mode
What happens & when: Water fills then stops - but will fill to different levels.

Error Code (if any):
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