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susanrm

dE error - shorted something - help! LG WM3431HW

20 posts in this topic

So I feel like a complete idiot... well, a partial one, anyway, and I'm hoping one or more of the experienced geniuses here can help me rescue myself from the mess I created.

I have an LG WM3431HW that I bought used and have performed all the major repairs myself. The pump just went, so I took the opportunity to do some maintenance, which I haven't done in a year and a half: clean all the lint out of the machine and the duct, replace the valves again, replace the drain hose that had been repaired with Gorilla tape, etc. 

Finally had time tonight to install all the parts and do a test load. The wash went great, and the pump was smooth and quiet. But when it came to drying, it popped the circuit breaker. I checked out what was the trouble, and I found that the machine wouldn't start anymore due to a dE error!

Well, the mistake was a stupid one - I had connected some wires wrongly on the dryer assembly. Same colors, different connections, easy mistake to make using the little photo I had as a guide, but bad news for me. 

Now I need to figure out what is shorted or burned out. I made sure the door connector was firmly in, but that isn't the problem. It's got to be a wiring thing, or a control board <shudder> thing. I did check the thermistor, but that's okay. The LED is on on the control board too. 

If anyone can suggest some idiot-proof steps for me, I'd appreciate it. I did try the QC Test Mode, but it won't go past dE. Actually, when I start it up, it flashes IF:67/U03, if that's at all helpful. I thought it was supposed to just display IF:67. I do have a multimeter, but I'm not sure how to apply it in this case, and the service manual isn't all that helpful.

Please let me know what you think. I'll bake you cookies if you help me solve this. I really need this machine... and I need my kitchen back too! (It's sitting in the middle of it, and I'm in the middle of 12-14 hr workdays, and I live alone, so this is REALLY tough to be happening now.) :wacko: 
 

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Need appliance parts? Call 877-803-7957 now!

<<<I had connected some wires wrongly on the dryer assembly.>>>

 

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Can you elaborate more on this ?

 

Which wires were incorrectly installed & what color?

 

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<<<it flashes IF:67/U03>>>

 

***********

 

Software version ID---not important or relevant to your issue.

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Thanks, John!

 

Let me see if I can describe this. You know the black unit at the top? The one you have to remove to get to the duct? It's the dryer heating unit, right?

 

I mixed up the wires that go into two parts there - one is, I believe, the thermostat, and the other is the heating coil?

 

I mixed up the two blue wires, so that both the yellow and blue that came out of the black thing went into the silver-colored connector (I guess the heating coil - ouch), instead of the the blue one that needed to go to the thermostat instead.

 

Thanks again,

Susan

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Checking...

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Unplug unit.

 

Verify that the WIRES on the *Heater Connections* are YELLOW and BLUE.

This Blue wire runs/routes into a wire harness that is wrapped in black electrical tape---and is part of a group of wires that leads towards the Blower Motor inside the Duct.

 

Verify that the WIRES on the *Thermostat* are RED and BLUE---this Blue wire comes from the *Internal Fusible Link*.

Which has a hi-heat protective white sheathing on it and protrudes/sticks out from the side of the Heater Housing.

 

Plug in Laundry Combo & test in DRY mode (not wash mode).

Use the buttons on the far right---which has RED letters on the Control Panel (for dryer control options).

 

It's possible that the DOOR LOCK ASSY (which is in the same circuit--red wire) may have been damaged when the wires were incorrectly installed.

 

DOOR LOCK ASSY:  6601ER1005B

 

It's also possible that the MAIN BOARD has been damaged as well (need a full Model and Serial Number for correct part number).

 

For now---verify that all wires are correctly installed & test the dryer function...

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Hi, John, thanks, maybe it wasn't clear - the unit doesn't get past DE now. Ever. So I can't test ANY function. I've tried Wash, Dry, Test, everything. Just DE. Always.

 

I had changed the wires back to the correct connections (as you described) before testing earlier. Do you know a way to test the circuits to see if it's the door lock or the control board that's damaged?

 

S/N is 612KWNM00439 of WM3431HW. In the past I learned that although the manufacture date says 2006, the part numbers correspond to the 2004 models. I got a S/N off the control board, but I think that version is no longer manufactured.

 

Thanks,

Susan

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I so wish I could just go somewhere and pick up parts!!

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Okay, great. I'm thinking to order both parts at once and return the control board if it isn't needed to save time. I really need this machine to be active!

 

Are you sure that's the correct control board for my serial number? Just checking... is there only one? There are two different drums, bearings, etc. for the WM3431 series, which is where I got burned before.

 

Thanks again for your help!

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<<<Are you sure that's the correct control board>>>

 

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Yes---provided that the MODEL number is WM3431HW

 

Other models look like this...

 

WM3431HW/01

WM3431HW/02

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While that is the exact model number, believe it or not, LG manufactured two different models under the same model number. In the past, I've had to contact them with the serial number to look up the correct part number. My service manual came out in 2006 and has newer part numbers than the ones for my machine. Many are the same, but some differ enough to make life difficult.

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Hate to say this where John can hear, but if it's the main board - I'd get rid of that thing. It's tough enough to do your own maintenance without playing model number roulette.

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<<<Hate to say this where John can hear, but if it's the main board - I'd get rid of that thing. It's tough enough to do your own maintenance without playing model number roulette.>>>

 

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No reason to hate saying it :)

 

However---most customers that own one of these "combo" all-in-one laundry washer/dryers---cannot use a traditional washer and vented dryer arrangement (insurance regulations/rental agreement etc)

 

And they're not cheap either---when new---selling for around $1500.00

 

If I needed the combo set-up---I'd get the larger 3.6 cu ft size model.

 

If incorrect parts were ordered through Repair Clinic---they can be returned (must pay S & H)


 

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And they're not cheap either---when new---selling for around $1500.00

 

Ouch. I spoke too soon.

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Yep, even after the parts, it's still worth it.

 

I did replace the door lock just now (having held off on the control board). Still dE. Bad news. :-( I'll contact LG tomorrow to find out the exact control board model number.

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You had the right part number, John. Ordering it now.

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Something about this process is cursed. Last night, after installing the door lock, I reassembled the whole thing around my kitten, who became trapped inside. It wouldn't be such a big deal except for that spring wire that holds the rubber gasket on the door that is SUCH a PITA to put back on. So yes, I rescued the kitten and reassembled the whole thing *again*.  :silly:

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<<<that spring wire that holds the rubber gasket on the door that is SUCH a PITA to put back on.>>>

 

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This tool makes it easy...

 

383EER4001A

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Thanks, John - but that tool works well IF your spring springs. :-) Mine is pretty corroded. I have no trouble getting it off, using a special tool, but getting it back on is the hard part - though I'm getting better at it. And I'm NOT spending another $60 on a tool!!

 

Anyway - I replaced the control board (which I probably had to do anyway, as I had two inlet valves for the dryer cold water that died), and the machine passed the test cycles with flying colors. Yippee!

 

My last question for you, John, is do the door locks die, or are they usually pretty long-lasting? I'm asking because I think the one I took out is fine, and I'd like to get a refund on the one I bought if the other one is still good forever, but I'll leave it in if it's likely to go.

 

Oh, and one more question. What kind of cookies do you like? :-) You've been so helpful...

 

Thanks again! I'm so excited to be able to do laundry at HOME tonight!!!

 

EDIT: Leaning towards keeping it. This new lock is much quieter than the old one was.

Edited by SusanR

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<<<I replaced the control board>>>

 

<<<and the machine passed the test cycles with flying colors. Yippee!>>>

 

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Great job, Susan :)

 

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<<<My last question for you, John, is do the door locks die, or are they usually pretty long-lasting?>>>

 

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Usually lasts for the life of the combo---but your original Door Lock Assy *was* exposed to a "short"---while in Locked Mode and may have been somewhat weakened/compromised.

 

I'd keep the new one too...

 

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<<<Oh, and one more question. What kind of cookies do you like?>>>

 

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Those peanut butter girl scout cookies (can't recall the name of it)  :)

 

God Bless

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