It's interesting how just finding the little things to be thankful for each day can transform our outlook and affect everything about us-- our mood, attitude, memory, even our health. Sometimes, I lose sight of that in my day-to-day struggles and get bogged down in tedious things or things that are not uplifting or beneficial. Or I focus and dwell on things that give me tension or irritation.
That's why I'm glad there's a special day just for giving thanks-- it's a reminder that everyday should be a small thanksgiving. Even if only for one or two things. The more you look, the more you find.
I hope and pray that this is an especially blessed Thanksgiving Day for you.
We held the First-Annual-Ever-yet-(somehow)-World-Famous Appliantology Photo Caption Contest both at our Facebook Page and here at my Appliantology blog. The judges have all harumphed, guffawed, flatulated and conferred. And now, finally...
The results are in!
Before I reveal the clever and literarily-endowed recipients of the coveted Appliantology Photo Caption Award™, I'll show you the uncaptioned photo. Behold...
Here, now, I give you the two winners for the First-Annual-Ever-yet-(somehow)-World-Famous Appliantology Photo Caption Contest.
The dreaded “serial communications error” in Whirlpool-built front-load washers appears as various codes, depending on the particular model. On the Old-Skool Duet washers, the most common communications error code was F-11: communications error between the Central Control Unit (CCU) and Motor Control Unit (MCU). On the new model Duet washers, this same error has been re-labelled as F-28. On some Maytag front loaders (all built by Whirlpool, in case you didn’t already know that), you may see an F6E2 fault code, which is a communications error between the CCU and the User Interface (UI) boards.
Many a fine battle-hardened appliance warrior has been befuddled by these error codes and have needlessly soiled their undergarments throwing every control board in the box at it.
But these serial communications error codes all have one big thing in common:
They are almost NEVER caused by a bad circuit board! Instead, they are exactly as the error code description says: a COMMUNICATIONS error between two boards. In other words, a bad connection.
Oh, I know— you’ll hear some guys swear it was a bad board because they replaced the such-and-such board and it fixed the problem, so it had to be a bad board. But I’m here to show you that in 99.9999% of these cases, the board itself is perfectly functional but the real problem is the CONNECTIONS to the board.
“Uhh, howzzat, Samurai Smart-ass Guy?”
Ahh, Grasshoppah, make still your mind and the Samurai shall reveal the truth unto thee. And the truth shall make you free. Come with me now on a journey of Total Appliance Enlightenment™…
Let's think about the modern front loading washer and the average laundry room for a minute. In these front loaders, you have at least two (CCU and MCU) sometimes four (CCU, MCU, UI, and Steam Board) different boards that all need to talk to each other and pass data back and forth: digital data, voltages. How do they do this?
Since they haven’t incorporated internal Wi-Fi into appliances yet, all these boards are connected to each other by special wire harnesses called serial communications cables. All this data exchange is fact-checked and verified by a process called “handshaking” (yes, that’s what it’s really called). If, at any time during this continuous process of passing data back and forth an error is discovered during the handshaking, the CCU throws a serial communications error. The closest it can get in the error code is by telling you which two boards had trouble talking. But that’s close enough!
So what causes these handshaking errors? Lots of things! In fact, given the conditions that these washing machines have to work in— lots of vibration, moisture, humidity, heat, etc.— it’s amazing they work as well as they do. But all it takes is a loose connection at a molex connector on a wire harness or an oxidized pad on the control board to disrupt that handshaking. It doesn’t even need to be a totally broken connection, just one with low enough signal-to-noise ratio that the CCU can’t tell which is signal and which is noise.
Okay, here’s the part you’ve been waiting for: the Silver Bullet Fix for these elusive and mysterious serial communications errors in Whirlpool-built front-load washers.
The harness itself can (and usually does) check good. That's not usually the problem. The problem is at the harness connection points where the molex connector on the harness connects to the boards at either end. The tines can become loose or the pads on the board may become oxidized. Here's a technique that I've used with great success in these types of problems. BTW, all modern front loaders work the same way and use pretty much the same basic technology so this solution concept for serial communications errors applies to all brands of front load washers, not just Whirlpool:
I removed the back of the control panel on a range the other day, and found this little critter. (My customer freaked!) Seems like this pic is just a-squeakin' for a good caption. If you've got one, put it in the comments below.
Vote for a caption by "liking" it.
If your caption gets the most "likes," you'll win your very own official Appliantology travel mug and will be the envy of all your friends.
Contest ends at midnight this coming Sunday, November 24.
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