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Author Topic: Maytag Washer F01 Error Code  (Read 14276 times)

Offline TechnicianBrian

  • Technician
  • Member Since: Dec 2007
  • Posts: 390
  • Country: us
Maytag Washer F01 Error Code
« on: June 17, 2008, 07:13:27 AM »

Model #MHWZ600TW01, this unit would display an F01 error immediately after the start button was pressed. This error is an EEPROM communication failure of the electronic control board and is an internal failure that basically indicates the washer no longer thinks it's a washer. Since the repair requires the board to be replaced, I installed a new control board and now it has started washing again. A word of caution. Whirlpool has been making a lot of changes to the control boards of their front load washers (yes Maytag too) so make sure you are ordering the correct model using the full model number including the last two digits. If you install the wrong board, you may find yourself trying to fix a self induced problem.

Offline Chris Goulet

  • VIP Member
  • Member Since: Nov 2020
  • Posts: 1
Re: Maytag Washer F01 Error Code
« Reply #1 on: November 25, 2020, 01:09:01 AM »
There are four possible causes for F-01 that I know of:

CCU should make 2 clicks within 0.2 seconds when machine is plugged in. If hear none or only 1 click, replace CCU or replace relays K1 and K2 on CCU board (buy at Mouser or Digikey).

CCU does 2 clicks, but drum never rotates: replace MCU or re-solder GR1 bridge rectifier (4 pin device screwed to heat sink) on MCU board if no diodes or tracings look burnt.

CCU does 2 clicks, and drum rotates, and door locks, then later gets F-01: remove debris if drain pump is jammed or replace drain pump if it has a bad bearing or bad coil (should be ~12 ohms) AND / OR replace CCU or re-solder drain pump triac TR4 (loose pins) on CCU board.