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WM3987 LG Washer/Dryer Combo Won't Turn On

LG combo wont start no power

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7 replies to this topic

#1 DIYinMinnesota

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Posted 29 December 2013 - 12:21 PM

Hi -

 

Our "new" (used) washer/dryer combo is only being used for the dryer right now before the bathroom remodel is complete. Just the other day, it didn't finish the dry cycle and when I turned it on it had a pF code (power failure, I found out). It restarted after I turned it off and on and all was fine. Now it won't turn on at all. I investigated a little bit and found a warped piece of plastic in the "Electrical Noise Filter"...looks like somehow it got too hot. 

 

Thinking this was the problem, I searched for testing the noise filter and I found this website and the blog post below and checked the way he said to check. This led me to the main board being the problem.

 

I checked that though, in the same way, and that shows 120V as well. Is there another way to check??? What else could be wrong?

 

http://appliantology...play-or-power/ 

 

Thanks.



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#2 DIYinMinnesota

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Posted 29 December 2013 - 12:42 PM

Anyone? This is our best day to try to figure this out.



#3 john63

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Posted 29 December 2013 - 01:14 PM

<<<I investigated a little bit and found a warped piece of plastic in the "Electrical Noise Filter"...looks like somehow it got too hot.>>>

 

**********

 

Not an indication of failure.

 

Combo washer/dryer units generate a lot of internal heat (inside the unit itself)---which can deform the plastic on the Noise Filter---but otherwise cause no problems.

 

**********

 

<<<I searched for testing the noise filter>>>

 

<<<and that shows 120V>>>

 

**********

 

If the Main Board red LED light is not on/lit---faulty Main Board (EBR38163341)

 

**********

 

<<<Our "new" (used) washer/dryer combo is only being used for the dryer right now before the bathroom remodel is complete.>>>

 

**********

 

Just a reminder...

 

Verify that power outlet---is *not* a GFCI

 

Combo units will *always* trip a GFCI.


To eliminate:

Musty odor

L-O-N-G cycle times

Dingy/yellowing whites

Suds error message

Slow spin speeds

Intermittent water leaks (from rear of washer)

And other annoying symptoms which vary brand-to brand.

Read below:

The *correct* amount of HE (High Efficiency) detergent that should be used in any front load or agitatorless top load washer with tub sizes 3.0 cu ft and larger is as follows:

HE: (2) Tablespoons Per Wash Load

HE 2X: (1) Tablespoon

HE 3X: (1) Teaspoon

Perform a TUB CLEAN CYCLE every (4) months.

Use: "Tide Washing Machine Cleaner"

#4 Samurai Appliance Repair Man

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Posted 29 December 2013 - 02:40 PM

Replacement main PCB:  http://www.repaircli...8163341/1596121

 

Comes with a 365-day Return Policy:  http://www.repaircli...r/Return-Policy


#5 DIYinMinnesota

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Posted 29 December 2013 - 06:48 PM

You are so helpful! A couple things...

The LED light, where exactly is that? Do we need to take the power board out to see it?

The machine has worked on the GFCI - could it be a problem all of a sudden? It doesn't trip the outlet.

#6 john63

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Posted 29 December 2013 - 07:05 PM

<<<The LED light, where exactly is that?>>>

 

**********

 

On the Main Board (can't miss it--if it's on).

 

The plastic cover can be removed from the Main Board---to better locate/see that LED

 

**********

 

<<<The machine has worked on the GFCI - could it be a problem all of a sudden? It doesn't trip the outlet.>>>

 

**********

 

Yes---tripped GFCI is a common nuisance issue.

Sometimes the GFCI in another room will "trip"---rather than the one that the combo is plugged into.
 


Edited by john63, 29 December 2013 - 07:06 PM.

To eliminate:

Musty odor

L-O-N-G cycle times

Dingy/yellowing whites

Suds error message

Slow spin speeds

Intermittent water leaks (from rear of washer)

And other annoying symptoms which vary brand-to brand.

Read below:

The *correct* amount of HE (High Efficiency) detergent that should be used in any front load or agitatorless top load washer with tub sizes 3.0 cu ft and larger is as follows:

HE: (2) Tablespoons Per Wash Load

HE 2X: (1) Tablespoon

HE 3X: (1) Teaspoon

Perform a TUB CLEAN CYCLE every (4) months.

Use: "Tide Washing Machine Cleaner"

#7 Samurai Appliance Repair Man

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Posted 29 December 2013 - 07:08 PM

You can see an example of the illustrious LED on one of these boards in this video for an LG top loader-- different type of washer but the segment for the LED on the main PCB would still apply to your washer:

 



#8 DIYinMinnesota

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Posted 29 December 2013 - 11:44 PM

Thank you again! I got the cover off and found the LED. It is definitely not lit so I guess I'm going with replacing the part.





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