blueextc322 posted thisF12 isnt an easy code to diagnose. It means the mcu isnt communicating with the ccu. The problem could be the door lock or either board. I would recommend calling a
tech out.It is similar to the F11 error - see the following....."F11" is a Serial Communications error between the Central Control Unit (CCU) and Motor Control Unit (MCU). The CCU is the main
computer
for the washer and is located directly behind the wash tub. The MCU is
the Drive Motor Control board and is located in the rear of the washer
adjacent to the Drive Motor on the left-hand side (facing from the rear
with the back panel removed). The wiring harness can also cause the
error, but it is not as common a problem.Whirlpool is the
manufacturer of both model washers and recommends the following
troubleshooting advice. Remove the top panel of the washer by removing
the three screws holding it in place in the rear. Once the screws are
removed, the panel slides back, then off. Remove the rear panel of the
washer for access to the drive motor and MCU. Now check the following:-
Check the wire harness connections between the CCU, the MCU and Drive
Motor. Make sure all connections are attached and making good contact.
Check for any broken wires or connector pins.- Check the Drive Motor
to see if it free spins and that the belt is still attached and not
slipping. If the motor is seized, replace it. If the belt is broken or
worn, replace it as well.- Check the MCU. Connector 1 is the Serial
Communications Link between the MCU and CCU. Connector 2 is the
connector to the drive motor. Resistance checks across pins 1, 2, & 3
are the motor windings. Connector 3 is the power supply - 120VAC should
be
read
across pins 1 and 2 with the door in the locked position. NOTE: The
connectors are read 1, 2, and 3 from the bottom to the top with the MCU
installed.- Check the CCU. Verify connectors 7 and 11 are properly
installed. Facing from the front of the washer, connector 7 is the 4th
connector from the RIGHT along the front. This is MCU Power. Connector
11 is the Serial
Communications
link from the CCU to the MCU and is located along the left hand side of
the CCU (the connectors are numbered 11 through 14 back to front).-
Check the Drive Motor. Remove the connector and perform resistance
checks on the motor connector pins. Readings across pins 1 to 2, 2 to 3
and 1 to 3 should read 6 ohms.In most cases this is an
indication of a failed CCU. This is an easy repair that the average
do-it-yourselfer can accomplish on their own. If the washer is still
under a warranty, parts and labor would be covered. With no warranty, a
replacement parts will vary in price depending on where you get them.
There are several good websites available that you can order parts on
line and have shipped directly to you.NOTE: Remove all the
connectors from the CCU ONE AT A TIME and reconnect to see if the error
code goes away BEFORE you decide to purchase a new one. It is not
common, but sometimes a flaky connection can generate error codes.