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LG DW LDF9810ST No Power


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14 replies to this topic

#1 appliancecare

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Posted 29 January 2013 - 10:21 AM

I have an LG Dishwasher.  Model # LDF9810ST with no display.  No response to any selections on keypad.  I have power to the main PCB.

There is a display/touch pad PCB that plugs into that.  What is the best (or any) way to tell which componant is at fault.

 

Thanks!


Jim G.


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#2 Scottthewolf

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Posted 31 January 2013 - 01:49 AM

Have you checked the door switches for continuity with your meter?

 

Also, take the outer door panel off and check for broken wires embedded into the tar like insulation in the stainless steel door liner.


Scott Wolf

#3 appliancecare

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Posted 31 January 2013 - 05:47 AM

Thanks,

 

Door switch and wiring are good.  I am familiar with the ones that develop the broken at the door panel.  This is a newer model. Prob 2 years.

Sent a service request ticket to LG on there website.  Below is there response.  "not a real sure way to to check for a bad display, If you have power into main
bd I would replace the main, that is usually the cause"

 

I will try and let you know.




Ticket ID UQJOWQ-9231 : no
power/display





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Model Number*


Serial Number


Product Code/ ECN


Required for part numbers. On unit label with model
number.


Part Number Ordered


Where appilcable


Part Number Received


If Known


Phone Number*


Person to contact*


Date submitted
Wed 30 Jan 2013 - 06:59:16

Time Open
21h,36m,11s.

Last Response
 

IP
71.234.229.83

Status
Closed

Priority
Highest

Staff
mconforti

Emergency


Category
Digital Appliance

Subject
no power/display

Problem

dishwasher has no display. will not start. no
key selections work. lights in tub are on. have power to main pcb. ? how to
determin if the main pcb (EBR38144406) or display pcb (EBR38145001) is at fault?

Steps Taken


Submitted by mconforti Wed 30 Jan 2013 -
08:01:39


not a real sure way to to check for a bad
display, If you have power into main bd I would replace the main, that is
usually the cause

Jim G.


#4 john63

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Posted 01 February 2013 - 11:59 PM

NOTICE!

 

The following post is NOT to be construed as an attempt to educate or teach fellow technicians and DIYers---on troubleshooting an LG dishwasher!

 

If you're offended at having an LG trained tech explain how to diagnose & repair problems/faults with LG dishwashers---leave this site IMMEDIATELY!

 

<sorry couldn't resist/private joke>

 

****************************************************************************************************************************

 

<<<I have an LG Dishwasher.  Model # LDF9810ST with no display.  No response to any selections on keypad.  I have power to the main PCB.>>>

 

***********************************

 

On the MAIN BOARD---there's a large *yellow plug*.

 

Pull off this plug and check for 120 volts in the *plug*---if present---replace the MAIN BOARD.

 

LDF9810 models built **before** August 2007----->Main Board EBR38144401 (Serial Number range 806KW and lower)

 

LDF9810 models built **after** August 2007-------->Main Board EBR38144406 (Serial Number range 807KW and higher)

 

 

If there's NO power at the *yellow* plug...

 

Pull the *pink* plug off the NOISE FILTER and check for 120 volts in the *pink* receptacle on the Noise Filter (not the pink plug).

 

If no power--replace the noise filter.

 

 



 


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"

#5 Scottthewolf

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Posted 02 February 2013 - 01:56 AM

<<<rolls eyes at John63 and sighs.


Edited by Scottthewolf, 02 February 2013 - 01:56 AM.

Scott Wolf

#6 appliancecare

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Posted 07 February 2013 - 08:29 AM

Thanks John,

 

Have power at plug.  Main board on order. 

 

I need all the help I can get! 


Jim G.


#7 appliancecare

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Posted 18 March 2013 - 07:15 AM

Finally have an update for this problem.  I installed the main pcb part # EBR38144406.   Did not solve problem.  I ordered and installed display pcb part # EBR38145001.  This resolved the problem. 

This call was a call for extended warr provider.  Assurant Group.  So I was able to get an auth to replace and get paid for both parts.  I hate to shotgun repairs like this but this seems to happen more and more.

 

Question:  How would you handle this if it was a COD customer?  I obv can't return the first part.  I can"t charge the customer.  The first part didn't fix the problem.   Also had to wait like 14 days for each part. No stock. 

I know some servicers would just "shotgun" from the begining and replace both parts but that can add up to the customer just replaceing the dishwasher...  Frustrating...


Jim G.


#8 RegUS_PatOff

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Posted 18 March 2013 - 07:19 AM

... How would you handle this if it was a COD customer?  I obv can't return the first part.

yes, you can, if ordered from RepairClinic


.

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#9 Samurai Appliance Repair Man

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Posted 18 March 2013 - 08:34 AM

yes, you can, if ordered from RepairClinic

 

 

Ezzacly!  This is why I order all my electronics boards and more delicate parts from RepairClinic.  I guarantee the repair for a year and I need to know that I can return that board if it fails during that time.  I've also had it where a board failed immediately on installation due to another problem in the machine that I didn't catch (my bad) and RepairClinic took the board back with zero hassle, no interrogation, just done.  I've also had it where a thermostat failed right out of the box (quirk) and they just sent me another one, didn't even want to the old one back.  They're excellent to deal with.  



#10 Adirondack Bob

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Posted 18 March 2013 - 07:48 PM

From now on, when in doubt I am going to order from Repair Clinic for Controls like the Samurai suggests. Sage Advise.



#11 john63

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Posted 18 March 2013 - 08:48 PM

<<<I ordered and installed display pcb part # EBR38145001.  This resolved the problem.>>>

 

*****************

 

Includes the *on/off* button/switch.

 

a ***rare*** failure.

 

******************

 

<<<Question:  How would you handle this if it was a COD customer?  I obv can't return the first part.  I can"t charge the customer.  The first part didn't fix the problem.>>>

 

*****************

 

If under LG warranty---LG will "eat" it.

 

If out-of-warranty---I "eat" it and move on...

 

****************

 

<<<Also had to wait like 14 days for each part. No stock.>>>

 

****************

 

Can be a problem---depending on supplier.

 

LG shows in stock (48 hrs delivery)

 

***************

 

<<<I know some servicers would just "shotgun" from the begining and replace both parts>>>

 

***************

 

There are 3 boards

 

Main Board

 

Sub/Board (includes on/off button)

 

Sub/Board (includes cycle selections)

 

In most cases---a "No Power" complaint is caused by a failed Main Board.

 

You'll likely NEVER AGAIN have another board failure of this type again for 10 years.


Edited by john63, 18 March 2013 - 08:49 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"

#12 appliancecare

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Posted 20 March 2013 - 10:40 AM

Hey guys, 

 

Thanks for the feedback.  Reg & Samuria...  Do you have a wholesale account with Repair Clinic?  Or are they just retail?  I use the site to look up part # right now when I need to see a pic of the part to make sure I'm ordering the right one.  Thats a nice feature.  Have not ordered from them though.  I try to stay loyal to my supplier.  He treats me good with next day shipping no charge, good stock and prices.  But they will not take elect parts back that have been installed.

 

Much Appreciated.


Jim G.


#13 Ritz

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Posted 20 March 2013 - 11:38 AM

Just simply creating an account with Repair Clinic. i.e. email address and password - gives a me 15% discount. I've found that with electronics their prices are very competive with Marcone and other wholesale suppliers. It's also comforting to know you can return any board or electronics that are bad or didn't fix your repair no questions asked. I'd price shop any electronics your are looking for and compare with Repair Clinic vs. wholesale supplieers. I'll think you'll be pleasantly surprised.

#14 Samurai Appliance Repair Man

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Posted 20 March 2013 - 01:08 PM

  I try to stay loyal to my supplier. 

 

What does "local" really mean any more in this age of the internet?  I mean, can you get any more local than right here on your computer screen?  The interactions and help here are just as real as any you'd have in the brick n' mortar world... except you don't have to smell my beer breath.   :pint1:

 

 

Just simply creating an account with Repair Clinic. i.e. email address and password - gives a me 15% discount. I've found that with electronics their prices are very competive with Marcone and other wholesale suppliers. It's also comforting to know you can return any board or electronics that are bad or didn't fix your repair no questions asked. I'd price shop any electronics your are looking for and compare with Repair Clinic vs. wholesale supplieers. I'll think you'll be pleasantly surprised.

 

Wisdom!  Let us attend!   Testify, Brother Ritz!    :dazzler:



#15 appliancecare

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Posted 20 March 2013 - 04:53 PM

I will deff check out the Repair Clinic parts option in the future!

 

Thanks again!


Jim G.





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