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Member Since 20 May 2013
Offline Last Active Apr 01 2014 09:16 PM

Topics I've Started

LG LDF6810 ST shows HE error code

31 March 2014 - 12:50 PM

Konichiwa, Master Samurai-san.

Lowly grasshoppah seek guidance with unruly LG dishwasher, model LDF6810ST.

It's the later model with the same electronics as the LDF6920ST.

Last summer I replaced the PCB and the heating element and thermistor. The PCB is the later 6871dd1006Q part number. The PCB probably didn't need replacing as the heater element was burned through, but it happened. Old PCB is Rev M. Been working fine with newer PCB, I use the Sanitary mode most of the time.

A few weeks ago, the washing cycle would terminate after entering the drying cycle with an HE error. The resistance of the element is 11.8 ohms, and thermistor is around 12k ohms which is normal. I found that you're supposed to replace the PCB when this error occurs, but I would think this Rev Q unit would have had the necessary upgrade. If I put the Rev M board back in it shows no HE code, but it just doesn't dry. In addition, the self-test codes on the Rev Q board seem to differ from what's published in the service manual.

I pressed Upper Only+Time Delay+Power to start the self test and I get 3H/UA cycling back and forth. Manual says I should see 3H/U2.

Pressing Time Delay once more I see 01/2 cycling. Manual says I should see 31.

All the rest of the tests appear normal except pushing Time Delay 9 times for Thermistor test gives me a code 30, manual says it should be showing 39.

I'm thinking the heating element is having issues. What say you, oh Master?

Please advise.


LG LDF6920ST dishwasher heater turns on when door is closed

20 May 2013 - 01:15 PM

Hi, My LG LDF6920ST dishwasher just started an interesting behavior.


I opened it the next day after it finished it's wash cycle and the thing was very warm and full of steam!

I then discovered that even with the power button off, the heating element is getting hot when the door is simply closed.

If you open the door you can hear a sizzling sound that gradually stops when you open the door. Close the door for 10 seconds and open it again you can hear the sizzling sound again.


I have taken the door apart and reseated all connectors but it did not help.


Any ideas as to what part failure might cause that? I'd appreciate any input.







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