Question about Whirlpool Duet GHW9150P Front Load Washer

1 Answer

CCU works only with box top off & hung by rope

I've been having random electrical problems with the CCU & MCU which have been giving F11 and Fdl codes. As someone suggested in this forum, I resoldered the printed board and put the unit all back together and it wouldn't work. Then, as another forum member suggested, I took the plastic top off of the CCU and hung it by a rope over the washer. Then I started the diagnosis tests, C 01 thru C 08, and it ran thru the steps without a hitch. It seems that the CCU top is torqueing the printed circuit board causing failure of certain circuits. I haven't run a complete load thru, as yet, but will before the week has ended. Does anyone else have such problems like this? Thanks for any help you can provide. Don

Posted by on

  • DFSmitty66 Feb 14, 2008

    I've soldered these relays and 110 v conectors twice. Today I kept the iron on the connection longer to make sure there was enough heat to get into the tight areas. I'm confussed about the solder lines thru the middle of the printed circuit fiberglass boards. Are these separate circuits or are they as they appear. Also today, I used an electrical cleaner on the smaller, slide-on, connection points and rubbed them with a cotton swab. The cotton was dirty when I was done. When I was done, I started a washload of 40 minutes. About 33 minutes into the cycle the F11 code came on. I pushed up on the MS2 (MCU) connector on the CCU and the cycle continued. If I let off of the pressure on this connector, the wash cycle would stop, but if I pushed up immediately again the wash cycle would continue. I kept an upward pressure on this connector for 30 minutes and the wash cycle was completed. Again, I took it apart and re-soldered this connector tring to be very through. When I put the CCU back together and attached it to the machine the way it should be, the Fdl code would come on once the wash cycle was identified and the start button was pushed. I remember what one other member of this forum said about the CCU top causing him problems, so I removed the CCU top and hung the rest of the unit on a rope above the machine. I started the diagnostic test C:00 thru C:08 and it ran perfectly. I will run the machine in the next couple of days when I get a wash load together, besides, I need a break from this machine. I really like the wash job it does especially sleeping bags & quilts, so I hope to figure it out and master the machine. Maybe I could design a bunch of toggle switches to add to the control board to bypass all of these things giving me problems. Thanks for your help. I need all I can get. Don

  • DFSmitty66 Feb 14, 2008

    I think the items we are talking about are 12 volts or less. I could solder small wires directly from the relay feet to the contact feet and snake them along the circuit board. I'll try this before I buy a new board!



    "double sided and plated thru the holes" - Wheeew, how are you going to find cracks within the board?

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,554 Answers

Did you re-solder all 3 of the relays?
if you did.
and don't want to purchase a board you will have to find the micro crack yourself, you need to get to well lighted area and have a microscope or jewelers eyeloupe get a loupe from ebay or a photo supply house if any still exist.
a magnifying lens will likely not help.
the solder will have small cracks around the leg of the component.
with theses units I found the cracks to look like a starburst pattern. just don't give up and don't go soldering all over the board.
you could take it to a tv repair shop or laptop shop as they have the scopes usually. or send it to me.
I have a lab.

Posted on Feb 13, 2008

  • Karl Whisenand
    Karl Whisenand Feb 14, 2008

    I know that circuit well and you cant design any switches that will allow it to work.
    you just have to look harder as there is still a loose solder joint.
    the boards are double sided and plated through the holes to answer your question.
    sometimes even the plating may be at fault but rarely.
    the replacement board on the cheap side will cost around 225. but it has the same issues right out of the bag. Mine was replaced new and it failed on first load.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Whirlpool Duet washer showing code F11?


Hi,

The F11 code is a loss of communication between the CCU circuit board and the MCU circuit board. (CCU Central Control Unit, MCU Motor Control Unit) The most probable cause is bad solder joints on the CCU circuit board (also known as cold solder joints). This condition is also noted for causing a FdL code (door lock) The cure is to remove the CCU (inside machine, top, back, plastic case) remove the plastic case then the circuit board, it's easier that way. Then touch-up the large solder joints holding the spade connectors and the relays (5 of them). If you're not up on soldering techniques, you could take the CCU and this response to a good appliance repair shop and they should be able to help you out. Good luck.

Apr 05, 2011 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

ERROR CODES F11 AND DL . CAN YOU TELL ME WHAT THEY MEAN AND A SOLUTION. THANKS


Hi,

F11 is lost communications between the CCU circuit board and the MCU circuit board and the FdL code is a door lock problem. There more than likly is no door lock problem and the lost communications is only a half truth. The biggist problem that whirlpool has with these machines is bad solder joints on the CCU circuit board that prevent communications between the MCU, Door Lock, and other things. The cure is to remove the CCU circuit board (inside, top, back of machine) It's in a plastic case, remove the plastic case with the board in it, it's easier that way. Then touch-up the solder points where the spade connectors and the relays (5 of them) are supposed to be securly soldered to the circuit board. If you're not up on soldering techniques, just take the case and board, along with this response, to a good appliance repair shop and they should be able to help you out. Good luck.

Feb 16, 2011 | Whirlpool GHW9400 Front Load Washer

2 Answers

The F-11 codes keeps coming on. Manual says it is electrical problem and to reset but it continues to be a problem.


Hi,

The F11 code means a loss of communication between the Computor Control Unit (CCU) circuit board and the Motor Control Unit (MCU) Most often the problem is bad solder joints on the CCU circuit board where the relays (5 of them) and the spade connectors are supposed to be firmly connected to the circuit board. The cure is to remove the CCU circuit board and touch up those solder joints I mentioned. It's easier to remove the CCU case with the board in it then remove the circuit board. The case is located inside the machine at the top twords the back. If your not up on soldering techniques you could remove the CCU case and board and take them, along with this response, to a good appliance repair shop and they should be able to help you out. Good luck. As a note, this repair also cures the FdL code.

Feb 10, 2011 | Whirlpool Gold Duet GHW9400P 3.8 Cu. Ft....

1 Answer

Our whirlpool elite washer keeps F11 erroring and FDL locking the door.


Hi.

FDL is door lock. This is the first part to be tested, since it can be symptom of a wiring problem.

The door lock is tested by reading impedance on the door latch contacts.
If the door lock is OK, do the following troubleshooting for F11. The problem is usually CCU.

F11 is communication error between CCU (main control unit) and MCU (motor control unit - additional control module connected to motor and to CCU, located in a sealed box inside the washer).

This usually means that either CCU or MCU is defective. In some case the connectors or the wiring harness connecting the two modules is the problem.

The tech sheet says:

F11:Serial Communication Error
Communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.
Solution:
* Check Wire Harness connectors to the MCU, the motor, and Central Control Unit (CCU)
* Check the Drive system for any worn or failed components
* Check MCU
* Check CCU
* Check Motor
* Check Wire Harness

The wiring harness is tested using a multimeter to ensure that there is continuity between the MCU and CCU connectors. If a single wire is good it will read zero Ohms (closed) from contact to contact.
Motor is tested reading Ohms, it must be read about 6 Ohms on three different pairs of contacts.
Drive system in motor is checked observing if any of the parts are broken.
MCU and CCU are tested reading volts during operation and testing at component level. The testing must be done by a tech. Check CCU to see if there is any sign of failure (eg burnt spots).

Most of the time the problem is CCU. Trick to repair it include testing and eventually reheating the solder joint of the two on-board relays, cleaning connector contacts with circuit cleaner solution. This in case that the problem is CCU.

Disconnect the unit from power for five minutes as first test. This will reset CCU.

Jan 20, 2011 | Kenmore Elite 45986 Front Load Washer

2 Answers

Error code F11 washer stops mid-cycle


Hi,

The F11 code means that communication between the CCU circuit board at the top of the machine and the motor control circuit board at the bottom of the machine has been lost. The problem most often found is cold solder joints on the CCU board that make and break causing the F11 code and sometimes an FdL code. To fix this you need to remove the CCU circuit board at the top of the machine and have the larger solder points of the relays and the spade connectors resoldered. If your not to handy with soldering you could just print out this response and a good appliance repair shop should be able to help you out. Good Luck.

Dec 30, 2010 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

What does F11 mean?


F11 means that the circuit board at the top of the machine (CCU) is not communicating with the circuit board at the bottom of the machine (MCU). If you're getting an F11 code you may also get a FdL code (communication from the door lock to the CCU), in either case the problem is with poor quality control by whirlpool. On the CCU board there are what's called cold solder joints at the point where the relays and spade connectors connect to the circuit board. You'll need to remove the board and have those solder joints touched-up. You may break some plastic tabs removing the circuit board, that's because whirlpool used the cheapest plastic they could find. If you can't do the job yourself, take the board along with this response to a good appliance repair place. Good luck.

Nov 26, 2010 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

Trouble code f11 or fdl for whirlpool duet front load wash machine.


Hi.

FDL is door lock. This is the first part to be tested, since it can be symptom of a wiring problem.

The door lock is tested by reading impedance on the door latch contacts.
If the door lock is OK, do the following troubleshooting for F11. The problem is usually CCU.

F11 is communication error between CCU (main control unit) and MCU (motor control unit - additional control module connected to motor and to CCU, located in a sealed box inside the washer).

This usually means that either CCU or MCU is defective. In some case the connectors or the wiring harness connecting the two modules is the problem.

The tech sheet says:

F11:Serial Communication Error
Communication between the Central Control Unit (CCU) and the Motor Control Unit (MCU) cannot be sent correctly.
Solution:
* Check Wire Harness connectors to the MCU, the motor, and Central Control Unit (CCU)
* Check the Drive system for any worn or failed components
* Check MCU
* Check CCU
* Check Motor
* Check Wire Harness

The wiring harness is tested using a multimeter to ensure that there is continuity between the MCU and CCU connectors. If a single wire is good it will read zero Ohms (closed) from contact to contact.
Motor is tested reading Ohms, it must be read about 6 Ohms on three different pairs of contacts.
Drive system in motor is checked observing if any of the parts are broken.
MCU and CCU are tested reading volts during operation and testing at component level. The testing must be done by a tech. Check CCU to see if there is any sign of failure (eg burnt spots).

Most of the time the problem is CCU. Trick to repair it include testing and eventually reheating the solder joint of the two on-board relays, cleaning connector contacts with circuit cleaner solution. This in case that the problem is CCU.

Disconnect the unit from power for five minutes as first test. This will reset CCU.

Nov 07, 2010 | Whirlpool Duet GHW9150P Front Load Washer

3 Answers

Hi. Whirlpool washer (Duet front load) GETS F11 error code. Any ideas as to the cause and repair?


Pull off bottom panel, there should be a schematic and trouble shooting guide to help you through any questions about you fault code.

Jan 14, 2010 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

F11


these error codes are not specific FDL can mean door latch failure .it can also mean the ccu board has failed also F11 can mean mean anything from motor to motor control board to ccu board to wiring harness connecting ccu to mcu to motor. if you do not know how to diagnose with out error code you may end up buying wrong part. sometimes doorlatch is not problem central control board CCU is

Feb 11, 2009 | Whirlpool Duet GHW9150P Front Load Washer

1 Answer

Random electrical problems, sometimes it works beautifully, sometimes not!


F11 = Communication between the Central Control Unit (CCU) and the
Motor Control Unit (MCU) cannot be sent correctly.
.
1. Unplug washer or disconnect power.
2. Check wire harness connections to the MCU, the motor, and
Central Control Unit (CCU).
3. Check the drive system for any worn or failed components.
4. Plug in washer or reconnect power.
5. Verify CCU operation by running a Diagnostic test or any
cycle.
6. Check the MCU by looking for operations of the drive motor.
7. Check the drive motor for powered rotations.
8. Check that the serial harness at the MCU is not mounted
upside down. The wires should be to the left when facing the
MCU connectors.

FDL=
A Door Lock Error occurs if the door cannot be locked. It will try to lock
it six times before displaying the error code.
Le code d’erreur “Verrouillage porte” apparaît s’il n’est pas possible de verrouiller la
porte. Le système effectue six tentatives de verrouillage avant d’afficher le code d’erreur.
■ Door lock mechanism is broken or removed from door.
■ Door switch/lock unit failure.
1. Unplug washer or disconnect power.
2. Check door switch/lock unit.
3. Check the wire harness connections to the door
switch/lock unit and Central Control Unit (CCU).

Feb 12, 2008 | Whirlpool Duet GHW9150P Front Load Washer

Not finding what you are looking for?
Whirlpool Duet GHW9150P Front Load Washer Logo

53 people viewed this question

Ask a Question

Usually answered in minutes!

Top Whirlpool Washing Machines Experts

Dan Webster
Dan Webster

Level 3 Expert

8205 Answers

Richard Roth
Richard Roth

Level 3 Expert

9472 Answers

Mike Cairns
Mike Cairns

Level 3 Expert

3053 Answers

Are you a Whirlpool Washing Machine Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...