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Whirlpool washer (M#WFW9300VU) - Error code F70. We already replaced both user interfaces that came in a kit.

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Hello & Welcome to FixYa

F70 is a communication error which is caused when no communication is detected from the user interface to the CCU (central control unit). Please check the wiring to user interface and the central control unit, if that is fine and you can see the drum rotating then replacing the user interface is recommended repair. If the drum won't turn then the CCU needs replacement. As the user interfaces are already replaced so now the CCU needs replacement. Please get back to me if you have any other questions.

Kevin

Posted on Apr 08, 2011

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Whirlpool duet getting error code F70 and F71. When hitting start button, getting a clicking sound and nothing is happening. Cannot open the washer door as it is locked with clothing inside it.


Hi jreib29,

F70 and F71 are two logic board error codes that point at a communication error between the main logic module and the control pad (user interface and CCU), and between the motor control unit and central control (MCU, andd CCU that is main control module).
Repair is difficult, as motor, wiring and voltages from control modules must be tested.

Try first doing a reset, by disconnecting power cord or tripping circuit breaker and leaving power off for five minutes.

If that does not help and errors come back, then the best thing to do is calling the service number listed on the user manual.

Here extensive explanation of error codes and relative troubleshooting:

F70: CENTRAL CONTROL UNIT HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.

1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving

F71: USER INTERFACE HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the User Interface to the Central Control Unit.

1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving.


Hope this helps.

Thank you for using FixYa.

Sep 17, 2011 | Whirlpool Kitchen Ranges

1 Answer

F70 code on washer nothing will work


Hello & Welcome to FixYa

F70 is a communication error which is caused when no communication is detected from the user interface to the CCU (central control unit). Please check the wiring to user interface and the central control unit, if that is fine and you can see the drum rotating then replacing the user interface is recommended repair. If the drum won't turn then the CCU needs replacement. Please get back to me if you have any other questions.

Kevin

Sep 14, 2011 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

F70 error code?


Hi.

F70: CENTRAL CONTROL UNIT HEARTBEAT FAILURE
If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.

1. Check for continuity of the User Interface harness.
2. Check wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving

You find more in this article.

Regards.

Ginko

Aug 06, 2011 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

Washer won't start.....F70 code appeared It's a Whirlpool Duet


Hello & Welcome to FixYa

F70 is a communication error which is caused when no communication is detected from the user interface to the CCU (central control unit). Please check the wiring to user interface and the central control unit, if that is fine and you can see the drum rotating then replacing the user interface is recommended repair. If the drum won't turn then the CCU needs replacement. Please get back to me if you have any other questions.

Kevin

Jun 26, 2011 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

What does code F70 on the washer mean?


The "F70" error code is indicating a loss of communication between the Central Control Unit (CCU) and the user's interface board on the right hand side of the console. The main top can be taken off by removing the screws along the back edge of the top. NOTE: Disconnect the power cord from the power source before removing the top.

Possible Causes/Procedure:

  1. Check for continuity of the user interface harness
  2. Check the wire harness connections at the user interface board and the Central Control Unit.
  3. If the unit will run and rotate before the "F70" displays usually indicates the user interface board will need to be replaced.
  4. If the unit will not run and rotate usually indicates the Central Control Unit will need to be replaced.

Jan 22, 2011 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

Error code f70


Hi,

F70 Error code means Central Control Unit Heartbeat Failure. If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.

F71 error code meansUser Interface Heartbeat Failure. If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the User Interface to the Central Control Unit.

In both the above situations the following things are required to be checked and replaced where required:

1. Continuity of the User Interface harness.
2. Wire harness connections to the User Interface and the Central Control Unit.
3. Replace User Interface if drum is rotating.
4. Replace Central Control Unit if drum is not moving.

Oct 04, 2010 | Whirlpool Duet WFW9550 Washer

1 Answer

Getting code F70 on washer...what does this mean? It wont start wash cycle at all. Help!


Hi,

F70 error code indicates Central control unit heartbeat failure. If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.
1. Check for continuity of the User Interface harness.

2. Check wire harness connections to the User Interface and the Central Control Unit.

3. Replace User Interface if drum is rotating.

4. Replace Central Control Unit if drum is not moving


Thank you !!

Aug 07, 2010 | Whirlpool Duet GHW9150P Front Load Washer

2 Answers

Can anyone tell me what an F70 code is? When I push the start button it beeps at my twice and then in about 30 seconds I get a long beep and the error code F70 is on the display. Thanks in advance for your...


Hi,

F70 error code indicates Central control unit heartbeat failure. If a Central Control Unit Heartbeat Failure is displayed, no communication is detected from the Central Control Unit to the User Interface.
1. Check for continuity of the User Interface harness.

2. Check wire harness connections to the User Interface and the Central Control Unit.

3. Replace User Interface if drum is rotating.

4. Replace Central Control Unit if drum is not moving

Thank you !!

Jun 23, 2010 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

Whirlpool Duet Washing Maching fault code F70


Hi


Thanks for using FixYa. Error F70 is a communication error between the Central control unit (CCU) and the user interface. To start with you’ll need to check continuity of the user interface and then check the wire harness connecting the user interface & central control unit. If the drum is not moving then central control unit should be replaced. Please do rate the solution if the issue is resolved or post a comment for further assistance.



Thanks
Rylee

Jun 02, 2010 | Whirlpool Duet GHW9150P Front Load Washer

2 Answers

Flashing code F71 then F70


We've owned a Whirlpool Duet Washer (WFW9200SQ00) for about 3 years. We started getting the F70 error code intermittently about 6 months ago and it seems to progressively be getting worse. Unplugging the unit for a few minutes resets the error, but it comes back about every 2nd or 3rd load causing my wife a lot of frustration and with 4 kids, our laundry was backing up. After reading several Forum's, I found the F70 error code indicates a "heartbeat" communication error between the various electronic boards inside the washer and the consensus seems to be the most likely culprit is the Motor Control Unit (MCU) board. Before spending nearly $250 for a replacement board (http://www.helpfulparts.com/servlet/the-5733/8183196/Detail) with no guarantee that it would fix the problem, I decided to take the board out of the machine and inspect it. What I found is the connector for the communication (the connector with three blue wires) on this board is a very unreliable connector that uses the edge of the printed circuit board on one side of the connection instead of a real connector soldered to the board. In addition, the fit of this connector seems to loose to make a good connection. I noticed a little bit of corrosion on the board contacts which I cleaned with rubbing alcohol and a pencil eraser. After re-installing the cleaned board we've done several loads with (keeping my fingers crossed) no errors. I am still concerned about the reliability of this connection. Because of it's location, this board is subject to a fair amount of vibration and because of the loose fit I'm concerned that this issue will only come back over time. I've already decided that if the error comes back I will solder wires to the contacts on the board to provide a more robust connection. It's a shame that you can spend well over $1,000 on a top of the line washer, and in order to save $.10 Whirlpool decided to use a very poor connector in a critical area. It makes you wonder where else did they skimp to save a few pennies?!! Our next washer will not be a Whirlpool, and next time will not get a high end washer with all the bells and whistles.

Oct 02, 2009 | Whirlpool Duet 3.8 cu. ft. Front Load...

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