Question about Whirlpool AWM8143 Front Load Washer

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AWM8143 stopped during cycle now door open flashing.

I have a AWM8143 that has stopped during the cycle nad now flashes the door open LED.

Coming from a strong electronics service background I have checked the door switch and bi-metalic door lock and this is fine.

I found a copy of the AWM8143 service manual and my question is this.

Page 5 of 22 outlines the resistances for the motor and pins 6 -7 should read 68.7 +/-7% Ohms. This is for the speed sensor or tacho located on the back of the motor. Unfortunately mine only reads 12.2 Ohms which would indicate a short in the windings. I would have thought this highly unlikely, however is the manual correct at 68.7 Ohms ? all the other resistances measure okay.

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  • carl_watts May 21, 2009

    Problem solved myself.



    Purchased a new motor as when I checked it out on the counter it measured 67 Ohms on the Tachometer coil.



    Fitted the motor but still no motor drive.



    Removed the Timer assembly and one of the Three main Omron power relays had a total dry joint on it. I decided to completely re-solder the complete board with a leaded Multicore crystal 511 solder as the lead free solder that was probably used in the re-flow is rubbish.The user interface board that has all the buttons on the front panel looked okay and is unlikely to fail.



    The new motor is also completely different from the old motor to look at with the tacho area revised.



    Basically from an engineering perspective this is a very well made machine, however it lacks the attention to detail and some decent soldering. As vibration is the nature of the beast with a washing machine so any bad soldering is going to cause havoc with multiple faults.



    I suspect if you call a repair guy you are going to get ripped to fix one of these as they will not board level repair this and sell you all new module parts like the complete timer assembly.



    The motor cost me NZ$314.07 total. The service manual off the net was a great help. Possibly the old motor will still work so I will keep it in case of trouble in the future and I may try to rewind the tachometer coil if it doesn't work (difficult job).



    I now know the AWM8143 machine in detail so if yours fails and you have an electronics component level background then e-mail me and you can repair it yourself.



    carl.watts@xtra.co.nz

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SOURCE: Washing machine stops mid cylcle

try pushing the door closed again, i have a problem with my machine that when i put a load on it starts then stops the light starts flashing then i firmly push the door (at the handle side) and it starts to work again, it might help!

Posted on Dec 17, 2007

IrishDruid
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SOURCE: SEARS WASHER 11045862400 S/N CSR5114418

1. First instead of just unplugging the machine, try switching the circuit breaker for that socket off for about 10minutes and see if that resolves the issue. Also pull out the detergent dispenser and reach all the way in to the back there is a small plastic flapper valve. Move it from side to side with your finger this will rest code.

2. If that does not work, check the drain pump..it could be clogged. All you do is take off the bottom front panel (there are 3 screws). After the panel is off, there is a turn knob right in front in the middle. Simply unscrew it and remove any thing in the "catch". Screw back (re-attach) the knob and you are good to go.

3. In the manual, the instruction for an F06 code (electrical problem) is :

Select PAUSE/CANCEL twice to cancel the cycle. Select DRAIN/SPIN if there is excessive water in the washer. Re-select cycle and press START. If the problem remains, call for service.

After that, you might try unplugging then plugging it in again.

The F06 code is generally an electrical fault. · Check wiring to motor and replace drive motor if necessary. Check the wire harness that goes to all your connectors on the Motor, MCU, and CCU. I have seen a loose wire connector do this F06 error.

If all checks ok, then its likely a faulty CCU, check your owners manual, some are covered under warranty for up to 5 yrs.

Here is the one for your model:
Electronic control assembly

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ngafm
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SOURCE: Whirlpool Dishwasher detergent door not

pdemaio,
ngafm at your service

I believe the loud humming you describe is an electronic problem. And is not worth changing parts randomly and spending unnecessary funds in this fashion!
my advice is a hands on experience repair person that does this day in and day out!
Whirl pool units have many variables! and for the price of randomly changing two or three parts you could have a certified tech finished the repair at a lesser cost to you!
Unfortunately i can not be there hands on or I would be happy to do a hands on diagnoses for you.
Bless You ngafm.
Please leave me a good rating, before you sign off the site.
Ps. Let me know the end result and which electronic part was the culprit..
Thank you

Posted on Sep 10, 2008

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