f01-e02 error code

Billrod, If you need any parts call our parts department at 1-800-830-5465 or order on line at http://www.savemoreonparts.com
These are the steps to diagnose your problem per the manufacturer for your stated error. It is rather lengthy. This information should be “hidden” on your washer probably under the top panel if its easier to follow that way. Here is a link ti 15 Maytag repair videos … https://www.appliancevideo.com/appliances/00-mhw6000x/

Sean

MCU ERROR – MULTIPLE RESETS
Motor Control Unit (MCU) has an internal malfunction, repeating under or over voltage, or over current
conditions. Can also be caused by momentary loss of neutral feed to MCU during the spin cycle. If the
error occurs during a high-speed spin, the door will remain locked for 3 minutes.
Possible Causes
• See TEST #3 (Motor Circuit) on page 15

TEST #3: Motor Circuit
This test checks the motor, motor control unit
(MCU), and wiring.
IMPORTANT: A guide (W10271535) is
required to assemble the rotor onto the shaft.
The guide is inserted into the threaded hole,
and then the rotor is slid on over the guide.
NOTE: If the harness between the CCU and
MCU is removed or communications are
interrupted during operation, the MCU puts
the motor into a braking mode, resulting in a
significant drag on the drum when turned by
hand. This mode can be cleared by removing
power from the washer for a few seconds.
1. Check the motor and electrical connections
by performing the “Quick Diagnostic Test” on
page 6. The following steps assume that this
step was unsuccessful.
2. Unplug washer or disconnect power.
3. Check to see if basket will turn freely.
 If basket turns freely, go to step 4.
 If basket does not turn freely, determine what
is causing the mechanical friction or lockup.
4. Remove the top and rear panels to access
the machine electronics and motor components.
5. Visually check that connectors MS2 and MI3
are inserted all the way into the CCU. Refer to
CCU diagram on page 13.
 If visual checks pass, go to step 6.
 If visual checks fail, reconnect MS2 and
MI3, and repeat step 1.
6. Visually check that all connectors are inserted
all the way into the MCU (see Figure 6, at left).
 If visual checks pass, go to step 7.
 If visual checks fail, reconnect the
MCU connectors and repeat step 1.
7. Check the motor windings. Disconnect the
motor harness from the MCU. With an ohmmeter,
verify the resistance values as shown below:
 If the values are outside the range or open,
replace stator assembly; otherwise, reconnect
the motor harness and go to step 8.
8. Check the two harnesses between the
CCU and MCU for continuity.
 If there is continuity, go to step 9.
 If there is no continuity, replace the main
lower harness.
9. With a voltmeter set to AC, connect the
leads across pins 1 and 2 of connector MS2.
10. Plug in washer or reconnect power.
11. Run the “Quick Diagnostic Test” on page
6. IMPORTANT: Door must be closed and
locked to run motor.
Motor Harness Windings
Pins 1 & 2 8.5 – 14.0 Ω
Pins 2 & 3 8.5 – 14.0 Ω
Pins 1 & 3 8.5 – 14.0 Ω
 If the values are outside the range or open,
replace stator assembly; otherwise, reconnect
the motor harness and go to step 8.
8. Check the two harnesses between the
CCU and MCU for continuity.
 If there is continuity, go to step 9.
 If there is no continuity, replace the main
lower harness.
9. With a voltmeter set to AC, connect the
leads across pins 1 and 2 of connector MS2.
10. Plug in washer or reconnect power.
11. Run the “Quick Diagnostic Test” on page
6. IMPORTANT: Door must be closed and
locked to run motor.
12. When the test shows “C05 & C08” on the
display, the motor is powered and line voltage
from the CCU should be present across pins
1 & 2 of connector MS2.
 If line voltage is present, replace the MCU.
 If line voltage is not present, replace the CCU.
13. Unplug washer or disconnect power.
14. Reassemble all parts and panels.
15. Perform the “Quick Diagnostic Test”
on page 6 to verify repair

QUICK DIAGNOSTIC TEST
NOTE: The Service Diagnostic mode must be
activated before entering the Quick Diagnostic
Test; see procedure on page 4. If, at any point,
the user presses the POWER button, the
washer exits to standby mode.
Active Fault Code Display
in Quick Diagnostic Test
If the display begins flashing while in the Quick
Diagnostic Test, it is displaying an active fault
code. Active fault codes are codes that are
currently detected. Only one active fault code
can be displayed at a time.
i Press power button at any time to exit i

Entry Procedure
To enter the Quick Diagnostic Test, press and
release the 2nd button used to activate the
Service Diagnostic mode. The power button
indicator turns on and the start button indicator
begins to flash. Press the START button to
perform the Quick Diagnostics tests listed below.
Each test phase is indicated on the display.
IMPORTANT: If entry into Quick Diagnostics
is performed too quickly after activating the
Service Diagnostic mode, the test will not start.
Exit Procedure
To exit Quick Diagnostics, press the POWER
button, or press and hold the 1st button used
to activate Service Diagnostic mode for 5
seconds.

C00 * Door lock motor is actuated. Door
unlocks, and then locks again.
Pump is activated for 15 seconds.*
• Door Lock System
• Drain Pump*
on completion ONLY.
C01 †
steam models
only
Heater is turned on.
Steam valve is actuated.
• Heater
• Steam Valve
• Temperature Sensor
on completion or at key press.
C02 Cold water valve will actuate. • Cold Water Valve
• Flow Meter (Steam only)
on completion or at key press.
C03 Dispensing system is set to the Prewash
position #1.
• Dispenser Motor
• Dispenser Contact
on completion ONLY.
C04 Hot water valve will actuate. • Hot Water Valve
• Flow Meter (Steam only)
on completion or at key press.
C05 Drum rotates clockwise at wash speed. • Motor
• Motor Control Unit (MCU)
on completion or at key press.
C06 ‡ Heater is turned on to heat water
to pre-set temperature level.
Drum rotates clockwise and counterclockwise
at wash speed.
Water valve is activated to fill drum to
minimum water volume required to
wash. (If there is enough water in the
drum, the water valve will not turn on.)
• Heater
• Temperature Sensor
• Motor
• Motor Control Unit
• Cold Water Valve (if needed)
• Pressure Sensor/Switch
on completion or at key press.
C07 Drain Pump is actuated until there is no
water in the system—plus an additional
15 seconds.
• Drain Pump
• Pressure Sensor/Switch
on completion or at key press.
Drum rotates counter-clockwise from 35
rpm > 100 rpm > 150 rpm > 100 rpm in
~ 1-1/2 minutes.
• Motor
• Motor Control Unit
on completion ONLY.
Drum rotates counter-clockwise at
maximum speed.
Door lock motor is actuated. Door
unlocks.
• Motor
• Motor Control Unit
• Door Lock System
on completion or press of the
power button.
C08
QUICK DIAGNOSTIC TEST
QUICK DIAGNOSTIC TEST NOTES:
*C00 – For STEAM models, the drain pump is activated as part of the APS (Analog Pressure Sensor) calibration routine. For NON-STEAM
models, the drain pump is only activated if the CCU detects a significant amount of water in the tub. Drain time will depend on water in tub.
† C01 – This test phase is performed only on STEAM models. NON-STEAM models skip this test.
‡ C06 – This test will run until a pre-set temperature level is reached. Water temperature will affect the duration of the test.