Question about Whirlpool Duet GHW9150P Front Load Washer
Click on the following link for advice on how to troubleshoot and diagnose the "F11" Error.
If you require further assistance, or need help in locating parts, please post back and let me know. I hope this is helpful to you.
Posted on Jun 12, 2008
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The F11 error code indicates an internal failure of the MCU (Motor Control Unit). Most often the MCU will need to be replaced; however there are a few things you may want to check first. If you have a volt/ohm meter and are comfortable working around live electricity I can give you a few checks that will help you diagnose the problem.
I have included an illustrated set of instructions, that should guide you through the disassembly and testing for the F11 (see this image).
Check the wiring harnesses between the CCU (Central Control Unit) and the MCU, and between the MCU and motor. If these connections are not good there can be a loss of communication between the computer boards and the motor.
Check continuity of the motor windings and tachometer. Begin by Ohming the set of 5 black wires (this connection also has a green wire) at the MCU. They are numbered from top to bottom 1-5, with 1 being the top black wire.
Ohm 1 to 2, 1 to 3, and 2 to 3, then Ohm 4 to 5. Wires 1, 2, and 3 should read approximately 6 Ohms when Ohmed two at a time, 4 and 5 should read approximately 115 Ohms together. If the readings you get are not close to 6 (5 - 7) and 115 (110 -125) the motor is bad and needs to be replaced.
If the Ohm readings are close to those given, and the wires and connectors are good, replace the MCU.
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