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Good evening. My name is ***** ***** I'll be helping you with your washer today. F71 is actually an error code for a faulty display interface control board. That being said sometimes the MCU is known for confusing the board creating the unit to act dead of cause the F71 error. It's simple to determine whether your MCU came faulty or your interface board is bad. Just unplug the washer and remove the top panel of the washer. Unplug the MI3 wire connection going to the CCU. Plug the washer back in and see if the control panel lights up and works again. If so, return the MCU and get a new one because it came bad. If not, then your front interface control board has just failed and needs to be replaced.
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