Whirlpool Cabrio wtw6600 stops at rinse and flshing light and sound, then afert pressing pause resum washing

Some spray-lubricant may buy you a month or two of extra time before replacement is required.

looks like a faulty contact maybe. See this site:
http://applianceassistant.com/Washer-Repair/Cabrio-Bravos-Oasis/Cabrio-Bravo-Oasis-Troubleshooting2.php

The start switch is an integral part of the control panel main board.

it sounds like you have a bad touch pad,try unplugging the machine for a few minutes to see if it resets the board,i would call the factory on this,they've been having problems with this and they might give you the part for free but you'll have to pay for the labor.
http://www.repairclinic.com/PartDetail/Touchpad-and-Control-Panel/W10070060/1202650
this could be the problem

My Whirlpool WTW6600 had the same problem. The tub no longer floated up and down on the center shaft, so it only spun, not agitated. You must remove the tub (with some effort) and lightly sand / clean the center shaft. Lube it lightly with wheel bearing grease so that after it is reassembled, you can pull the tub upward and feel about 1/2" movement. This will enable the proper gear assembly to engage. It can spin when it rests at the bottom of its travel, but once you fill the tub, it floats, moving upward, and engaging the agitation gear. Good Luck!

The UL code means Unbalanced Load. Open the lid and move your clothes around so they are distributed evenly. Your spin cycle will then work normally.

could be the pcb board

My boss's washer has the same problem, located the tech manual inside the washer at the front it was saying to check the pressure hose for any kinks if no kinks found and problem continues replace the motor control board.

Well I have the same problem the only way I have found that my washer works is that on the soiler level make sure you put that on the heavy. And that should work I know its a pain but thats what I do and my washer washs with out stopping

Your Central Control Unit is most likely the problem. It is the main board in the machine behind the control panel and they have been failing a lot. This is a major problem with the Whirlpool Cabrio and the Kenmore Oasis machines. You will most likely need to call a service technician. People have also called whirlpool and complained and got them to pay for the part. I suggest you try battling with them. The part is faulty.