I did as suggested in other forums .. I pulled the CCU circuit board from the Whirlpool Duet washing machine, replaced the two white relays with Mode Electronics 12VDC SPDT 360MW 400 ohm 10Amp coil relays (part number 50-533-1). Each relay cost me $2.50 Canadian plus taxes.
When I removed the plastic covers from the two old white relays, I saw that the contacts on one of the relays was totally burned off. When I re-soldered the two new relays on the CCU circuit board and reinstalled the unit back into the washing machine, the washer worked for only two loads before the dreaded F11 and FDL codes reappeared.
I pulled the CCU circuit board again and followed another suggestion to re-solder the circuit board contact points of all three black relays (there are six legs on each relay to re-solder) . I also added a small thin line of solder on all of the circuit board contact fins (front and back). My Whirlpool Duet has now been working fine (about 30 loads) with no error codes during the last 30 days. In total, I spent about $5.50 for parts, 1 hour of my time to go and get the relays from a local electronic parts store and about three hours of my time to remove the CCU (twice), solder in the new relays, re-solder the contacts of the 3 black relays and add solder to the CCU circuit board fins.
If you don't have a small 15 / 30 watt soldering iron, a solder removal suction tube device and solder, then that will set you back around $30.
But that's better than paying over $500 for a service call and a new CCU to be installed. Hope this information helps you save money instead of paying for a service call or a new washer.

This is all very interesting. For the ccu are we talking about the microcomputer board 8182280, AP3779011
One of the responders in the past said he removed all the relay covers, ground the tops off, and covered the open tops with a piece of tape so he could inspect them easily for future detction of a faulty relay. Is this possible?

I don't think leaving the top of the relay open is going to give you the angle of view that would be needed to inspect the relay, and I think it would open the relay up to dust and moisture which would just cause premature failure. Besides, if your getting the F11 error and you have gone through taking the top off of the washer, unplugging all of the wires from the CCU, and removing the board from the CCU casing, I would just spend the $7.50 and replace the relays while you have it apart.

I will say this, I've had this washing machine for about 10 years and this is the first problem I've had with it. We are a family of five and do laundry almost everyday. This machine has probably done thousands of loads without an issue. Once and awhile I've had to remove the strainer before the pump and clean out debris and baby socks that would end up in there, but that's it. I've been really happy with it.

I would bet that the relay failure can be attributed to vibration. Any relay is susceptible to vibration by it's design. If I was an appliance service man, which I am not, I'm a computer geek :-) But if I was an appliance repair man... I would keep a bunch of these $3.50 relay's, a butane powered soldering iron, and some de-soldering wick in my truck and I would charge at least $250 for a "CCU Replacement" every time I had a call like this.

I have the other original Omron relay hanging on the wall if I would ever need to do this again. But I doubt I will ever need to replace it again.

To CAT88 as well as all other people on the forum.

You don't have to waist your money to buy a service contracts if you know how to use a simple tools. You can return ANY part ordered from Appliance Parts Pros within 365 days. They will take it back even if it was installed.

Gene.