In this case, I was confused by the thread title, by "Washer/Dryer" I read Washer and/or/xor Dryer.
I picked up this thread along the way because it was the latter that helped me and the information was there.
I'll know next time, but thanks for the help.
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
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Same board, same components, why can't I benefit from/exchange information?...
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Capacitors tested and ok.
The big one (330uf) has an ESR of ~1Ω.
From what I've read, I would have done it if it was a dryer model, but it's just a wash version.
I didn't change the brushless driver to play I did it because it was burnt out (thanks to lotas for the explanation)....
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Small update, I finally received the Mutsibishi PS21964-4S motor driver and proceeded with the change, I also changed the TOP246YN.
A few solderings later, I reconnected the whole thing: it worked again, great joy, but after 24h of operation, the machine stopped during the end of a cycle (I suppose spinning/drying).
After dismantling, the TOP246YN literally exploded.
When I reassembled the TOP246, as I no longer had a thermal tab, I used a double thermal face for the connection between the TOP and the radiator, perhaps this was a bad idea.
I've...
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I did a few tests earlier, put everything back in place (TOP246 and other components removed for testing) then plugged everything back in.
Result: Nothing happens when I press the button on the machine (although I'm not really sure, perhaps a relay has been activated).
In a nutshell:
The initial problem was that the power resistor linked to the ignition burned immediately when the Power button was pressed.
After removing the motor driver, it turned out to be short-circuited.
I repeated the test without the driver fitted, and nothing happened.
Maybe...
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Re: LG Washer/Dryer Power Fail
Ok, thanks for the answer!
I'll try to reconnect the washing machine without the motor driver to see if the machine turns on....
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Re: LG Washer/Dryer Power Fail
Removing component success, thx.
The reference of the motor driver is PS21964-4S Mutsibishi Electric (datasheet: [URL="https://www.badcaps.net/forum/attachment.php?attachmentid=318368&stc=1&d=1700498770"]Datasheet[/URL])
There is electrical continuity between all the points in red.
Correct me if I'm wrong but I think there's a nice internal short circuit?Re: LG Washer/Dryer Power Fail
Removing component success, thx.
...
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Re: LG Washer/Dryer Power Fail
Hi,
Thank you for your answers.
I just checked the motor driver and apparently, the problem come from it.
All the points in red are shorted and connected to ground, so it looks like the driver is dead.
Does anyone know the reference number of this driver (I didn't see any reference, wasn't sure I'd be able to desolder it, and wanted to make sure I could get one before venturing any further.)?
...
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Re: LG Washer/Dryer Power Fail
The relay coil seems to be good (150 ohms measured, same value for the other 2 relays)...
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Re: LG Washer/Dryer Power Fail
Hi,
I'm currently trying to repair a LG Washer F12952WH (sell on the french market 10 years ago), power board is EBR65873657 / EAX61526804.
The symptoms are simple: nothing happens when the button is pressed, after disassembling the power board (ref EBR65873657), I noticed that the fuse (220V, 8A) had blown and the power resistor (10 Ohms, 5W) used in series with the ignition button is dead.
I changed the 2 but when I press the ignition button, the resistor burns out immediately.
After going through...Last edited by hugokernel; 11-16-2023, 04:30 AM.
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