You definitely have issues that require your full attention.
1. If the machine is skipping the first drain cycle, the control board is bad. A 10-minute job, as it only requires removing the 10 screws around the door plus 2 more on the board. Everything just plugs in.
2. The spray arm must turn freely with no binding, so if this is not the case, it is a matter of removing a few screws to expose the spray arm support (upper housing). With the Maytag Dishwasher manuals in the head of this forum, you should be able to do this with ease.
You may order the control from the AP Wagner-Canada link on the left.