Question about LG 24 in. LD-12BW5 Free-standing Dishwasher

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HE error My LG LD-14aw1 is showing HE error code - Heater Circuit is troubled???. (Not as much as owner!!!). I have repaired several dry solder joints in the control module, which have been causing various operating failures, but the HE problem has got me stumped. Can anyone provide me with a wiring diagram of the machine and or the control module? I'd like to trace the heater circuit to see if I can find the fault. Many thanks

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  • annelevonis Jun 23, 2008

    i have model ld14aw2 jast had new motor installed perished seal motor completely rusted now shows he code fed up out of warranty is it worth fixing

  • john418 Feb 22, 2009

    I have the same error message on a LD 14AW1.
    I am assuming it is something to do with the heating element as I have no hot water


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From the manual: Errors: HE: Heater circuit failure.

Please call your Authorized Service Center or LGE
Customer Service at
1-800-243-0000(US), 1-888-542-2623(Canada).

Posted on Jan 09, 2010

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1 Answer

Dishwasher has an HE error code?


Hi,
"HE" is a "HEATER ERROR"


These are the possible causes for "HE" error:
1. The Circuit of Heater is troubled.
2. The Thermistor is troubled.
3. The Heater is shorted.
4. The Relay Circuit is troubled.

The Possible solutions are:
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These are the possible causes for "HE" error:
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The next day I read this post and have since removed the controller. I found the burnt solder joint mentioned. I have since cleaned up the mess, repaired the circuit board, re-soldered the effected component and the dishwasher is now working better than ever.

I have read elsewhere that this problem arises when the door is opened while the heater is on and the program hasn't been paused. I don't know if that is the exact cause but in my house we will be more careful about that from now on.

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Anyway the circuit board trace is possibly a little narrow at the point where the burnt connection was and I can see why it would have burnt out. The other terminals on the relay were showing signs of becoming dry joints too. The repair was effected by completely removing the relay, cleaning all the joints, re-soldering the relay and laying a loop of tinned solid wire around the burnt terminal to replace the missing piece of circuit trace.

Anyone who has a little skill with a soldering iron could perform this repair. The worst that could happen is you could lift what is left of the circuit trace from the board. Since the controller is already broken you can have a go and probably save yourself the cost of a new controller.

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