4 ms·

don't look any further, I bought a 3k washer and dryer combination from LG 4 years ago. It boasted a ten year warranty! the paint, drum, motor, finish, every

by gcb0 10y ago

don't look any further, I bought a 3k washer and dryer combination from LG 4 years ago. It boasted a ten year warranty! the paint, drum, motor, finish, everything looks like new. But, the controller board burned. I know my way around electronics, mind you, I can see exactly what is wrong (burned transformer), but the whole board is covered in some gelatin that makes any repair impossible. the power input board is also water proofed with the usual epoxy that you can chip away and do your repair. but the controller board gelatin thing makes it impossible! oh, and that board not only is NOT covered by the ten year warranty (only the drum and motor) but not a single place carry it. even LG cannot provide me that part for any money in the world. discontinued they say. after 4 years. if anyone want to pick it up and drive the pristine electronics with an Arduino, msg me. machine is in socal though.

sk5t 10y ago
Relying on an LG appliance warranty is an invitation to heartbreak...
my_username_is_ 10y ago
The gelatin covering the board does serve a purpose--it helps with vibration, among other things. It's called a potting compound, and you'll find it around electronic components in other high-vibration applications (automotive, power tools, etc.) https://en.wikipedia.org/wiki/Potting_(electronics) https://en.wikipedia.org/wiki/Potting_(electronics)
- c3833174 10y ago
  Don't know why LG does that when Miele only has a dedicated compartment containing the bare motherboard + service manual in plastic bag
  - masklinn 10y ago
    Potting is less expensive than designing an entire suspended/isolated container.
    - gcb0 10y ago
      This is the subject of this thread. How much "less expensive" you get on a $3~4k machine where the competition is $500. To compare with well built machines going for $3~4k in the 50's
kw71 10y ago
An SMPS controller burned on my LG Washer control. LG didn't have any boards in stock, so I decided to repair it myself. Pried the board out of the tray with autobody pry tools and pulled away the silicone goo where I needed to repair. I don't know what the rationale is for the board being covered in a half inch of rubber potting. A smaller coating would have provided a water seal, and this rubber is a heat insulator. Seems counterintuitive to me. You will have to replace the board if the transformer has an open winding, because all these transformers are application specific. The silicone was burnt around some of the transformer terminals on my board, which scared me, but I didn't find any open windings. The other special part on this board is the cpu, everything else on the board is commodity and it is a real shame that LG decide to use this rubber potting AND screw up the supply of replacement parts. I think it's a real flaw to integrate switchmode power supplies into control boards.
sjg007 10y ago
Might be worth suing them in small claims for breach of implied warranty.

by gcb0 10y ago

sk5t 10y ago

Relying on an LG appliance warranty is an invitation to heartbreak...

my_username_is_ 10y ago

The gelatin covering the board does serve a purpose--it helps with vibration, among other things. It's called a potting compound, and you'll find it around electronic components in other high-vibration applications (automotive, power tools, etc.) https://en.wikipedia.org/wiki/Potting_(electronics) https://en.wikipedia.org/wiki/Potting_(electronics)

c3833174 10y ago
Don't know why LG does that when Miele only has a dedicated compartment containing the bare motherboard + service manual in plastic bag
- masklinn 10y ago
  Potting is less expensive than designing an entire suspended/isolated container.
  - gcb0 10y ago
    This is the subject of this thread. How much "less expensive" you get on a $3~4k machine where the competition is $500. To compare with well built machines going for $3~4k in the 50's

kw71 10y ago

An SMPS controller burned on my LG Washer control. LG didn't have any boards in stock, so I decided to repair it myself. Pried the board out of the tray with autobody pry tools and pulled away the silicone goo where I needed to repair. I don't know what the rationale is for the board being covered in a half inch of rubber potting. A smaller coating would have provided a water seal, and this rubber is a heat insulator. Seems counterintuitive to me. You will have to replace the board if the transformer has an open winding, because all these transformers are application specific. The silicone was burnt around some of the transformer terminals on my board, which scared me, but I didn't find any open windings. The other special part on this board is the cpu, everything else on the board is commodity and it is a real shame that LG decide to use this rubber potting AND screw up the supply of replacement parts. I think it's a real flaw to integrate switchmode power supplies into control boards.

sjg007 10y ago

Might be worth suing them in small claims for breach of implied warranty.