Does you manual explain how to make it show you its stored error codes...is there a diagnostic /test mode? If not, I would search the net for that.

I have put it through diagnostics a number of times. It doesn't code for any errors. Just seems like it starts to spin and then senses load is out of balance and then stops slow spin and tries to re balance.
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My last guess.....Do you get different results on different size loads? My understanding is that some machines are extremely temperamental on load size and unbalance very easily...good luck.

It seems to be much more sensitive about load imbalance than it used to be. A load can be balanced by adding dry clothes as filler and then running on spin and drain. My 2 theories are that the suspension system wears after 8 years of use or that MCU has the imbalance sensor and it doesn't function as well as it did. Thanks for your help.