It could be either one. I would start by replacing the MCU, part # 8182706
Why you ask, only because it's cheaper then the CCU, part # 8182695
Wish I had a better answer for you, but it really is a guessing game when it comes down to the F11 MCU vs. CCU problem on these machines.
Wish I had a better answer for you. If it makes you feel any better the above answer is also the answer I receive from the Whirlpool factor techs when I question them about the F11 problem.
The good news is if you order the parts from the links I posted above you can return the one that don't solve your problem as AppliancePartsPros.com
has a great no hassle return policy.