Not draining at the end of of the cycle

I have a similar problem with my Maytag… where it won’t drain at the end of the cycle and when I press the cancel button to drain it, I hear a clicking sound inside where the control board is, and nothing happens. However, if I let the dishwasher cool for five or six hours, then I can press the cancel button and it will then thoroughly drain. I suspect there is a switch (something electrical) getting too hot and it won’t work until it cools… then it works… Any suggestions or comments?