Flashing code F71 then F70
We've owned a Whirlpool Duet Washer (WFW9200SQ00) for about 3 years.
We started getting the F70 error code intermittently about 6 months ago
and it seems to progressively be getting worse. Unplugging the unit
for a few minutes resets the error, but it comes back about every 2nd
or 3rd load causing my wife a lot of frustration and with 4 kids, our
laundry was backing up. After reading several Forum's, I found the F70
error code indicates a "heartbeat" communication error between the
various electronic boards inside the washer and the consensus seems to
be the most likely culprit is the Motor Control Unit (MCU) board.
Before spending nearly $250 for a replacement board
(http://www.helpfulparts.com/servlet/the-5733/8183196/Detail) with no
guarantee that it would fix the problem, I decided to take the board
out of the machine and inspect it. What I found is the connector for
the communication (the connector with three blue wires) on this board
is a very unreliable connector that uses the edge of the printed
circuit board on one side of the connection instead of a real connector
soldered to the board. In addition, the fit of this connector seems to
loose to make a good connection. I noticed a little bit of corrosion
on the board contacts which I cleaned with rubbing alcohol and a pencil
eraser. After re-installing the cleaned board we've done several loads
with (keeping my fingers crossed) no errors. I am still concerned
about the reliability of this connection. Because of it's location,
this board is subject to a fair amount of vibration and because of the
loose fit I'm concerned that this issue will only come back over time.
I've already decided that if the error comes back I will solder wires
to the contacts on the board to provide a more robust connection. It's
a shame that you can spend well over $1,000 on a top of the line
washer, and in order to save $.10 Whirlpool decided to use a very poor
connector in a critical area. It makes you wonder where else did they
skimp to save a few pennies?!! Our next washer will not be a
Whirlpool, and next time will not get a high end washer with all the
bells and whistles.
Oct 02, 2009 |
Whirlpool Duet 3.8 cu. ft. Front Load...