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F06 Error On Whirlpool Duet & Kenmore Elite Front Loaders
This advice is for Kenmore Elite HE and Whirlpool Duet FRONT
LOADER washing machines displaying the "F06" error code. The error is an indication a motor speed problem.
You will need to check the following:
- Check the wiring harness. Verify all connections between the Drive Motor, Motor Control Unit (MCU), and Central Control Unit (CCU).
NOTE: The MCU is a circuit board located in the vicinity of the Drive Motor on the bottom rear of the washer. To access the MCU, you will need to remove the back panel of the washer.
NOTE: The CCU is the main computer for the washer and is located behind the wash tub. You will need to remove the top panel to access the CCU. This is accomplished by removing the three screws in the back of the washer that hold the top in place. Once the screws are removed, the top panel will slide back, then lift off.
- Check the Drive Motor. Perform a continuity check of the Drive Motor windings. Remove the connector plug and check across pins 1 to 2, 2 to 3, and 1 to 3. All readings should be approximately 6 ohms. HINT: You can also take this reading by removing connector 2 from the MCU and measuring across pins 1, 2 and 3. If the readings are good, this will also prove the wiring and connector good.
- Check the MCU. The connectors are numbered 1 to 3 (L to R). That is, with the MCU installed, connector 1 is on the bottom, followed by 2 in the middle, and 3 on top.
Connector 1 - is the serial communications link between the MCU and CCU and has three wires. At the opposite end, this will be the 2nd connector from the rear on the left-hand side of the CCU.
Connector 2 - is the link between the MCU and the Drive Motor. Pins 1, 2, and 3 on this connector are the Drive Motor windings. Pins 4 and 5 are for the tachometer.
Connector 3 – is the primary power connector. Pins 1 to 2 should read 120VAC with the door in the locked position. Pin 3 is ground. At the opposite end, this is the 4th connector from the right on the front of the CCU.
NOTE: All the connector pins are numbered R to L.
If your continuity readings are normal for the Drive Motor and you have verified all connectors, replace the MCU.
If any of the Drive Motor windings indicate readings higher that 6 ohms, replace the Drive Motor.
I hope this information is helpful.
- Check the wiring harness. Verify all connections between the Drive Motor, Motor Control Unit (MCU), and Central Control Unit (CCU).
NOTE: The MCU is a circuit board located in the vicinity of the Drive Motor on the bottom rear of the washer. To access the MCU, you will need to remove the back panel of the washer.
NOTE: The CCU is the main computer for the washer and is located behind the wash tub. You will need to remove the top panel to access the CCU. This is accomplished by removing the three screws in the back of the washer that hold the top in place. Once the screws are removed, the top panel will slide back, then lift off.
- Check the Drive Motor. Perform a continuity check of the Drive Motor windings. Remove the connector plug and check across pins 1 to 2, 2 to 3, and 1 to 3. All readings should be approximately 6 ohms. HINT: You can also take this reading by removing connector 2 from the MCU and measuring across pins 1, 2 and 3. If the readings are good, this will also prove the wiring and connector good.
- Check the MCU. The connectors are numbered 1 to 3 (L to R). That is, with the MCU installed, connector 1 is on the bottom, followed by 2 in the middle, and 3 on top.
Connector 1 - is the serial communications link between the MCU and CCU and has three wires. At the opposite end, this will be the 2nd connector from the rear on the left-hand side of the CCU.
Connector 2 - is the link between the MCU and the Drive Motor. Pins 1, 2, and 3 on this connector are the Drive Motor windings. Pins 4 and 5 are for the tachometer.
Connector 3 – is the primary power connector. Pins 1 to 2 should read 120VAC with the door in the locked position. Pin 3 is ground. At the opposite end, this is the 4th connector from the right on the front of the CCU.
NOTE: All the connector pins are numbered R to L.
If your continuity readings are normal for the Drive Motor and you have verified all connectors, replace the MCU.
If any of the Drive Motor windings indicate readings higher that 6 ohms, replace the Drive Motor.
I hope this information is helpful.
Yes
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Comment #1
posted on Oct 02, 2009
Kemore HE3 Quitepak2 Elite Model: 110.45862403: Error F06
I have followed your diagnostic instructions. Motor connections checked with multimeter read 6.2 ohms. Tach consistently read 120 volts. Voltage to the motor stays at about 28 volts. I can hear the relay in the MCU switching when it’s time for the motor to start and it fluctuates a bit, but the voltage stays at about 28 volts. Is the voltage too low and do I have a bad MCU? Or is the motor bad?
I have followed your diagnostic instructions. Motor connections checked with multimeter read 6.2 ohms. Tach consistently read 120 volts. Voltage to the motor stays at about 28 volts. I can hear the relay in the MCU switching when it’s time for the motor to start and it fluctuates a bit, but the voltage stays at about 28 volts. Is the voltage too low and do I have a bad MCU? Or is the motor bad?
Comment #2
posted on Apr 25, 2009
jsrock516 - what about motor winding readings from 7.1 to 7.3 ohms? This was checked thru the harness @ the MCU. The F 06 is intermittent, and I had cleaned the plugs at the CCU 2 weeks ago, now today it happened again. I hate to replace the motor, but maybe it is the problem??
Comment by kish-81, posted on Sep 17, 2009
I just had to replace the MCU on Monday - drum would not spin at all. Works fine now, but I would like to repair the original MCU - any suggestions? I don't see any obvious issues with it.
Comment #3
posted on Jan 03, 2009
Well I used your information and I found out it was the connections for the Drive Motor that were covered with white corrosion film. I unplugged the connections and scraped off all the corrosion. Next I used electrical connection grease to cover the contacts. So far everything works great. I believe that fixed my problem.
Thank you so much. You were a great help.
Farmerboy983
Thank you so much. You were a great help.
Farmerboy983
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