Question about LG 24 in. LDF 7811 Stainless Steel Built-in Dishwasher

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UpsidedownFE not working thermal error

So they say it is a thermal error - getting too hot. how can this be fixed. the error comes on and will not go off. i unplugged it and that did not re-set the machine.

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  • Anonymous Apr 17, 2008

    Same problem. Repairman came, found a piece of gasket material obstructing the thermistor, cleaned it out, and dishwasher ran 2 cycles and gave the same error message. Called for service again, this time we are told the thermistor needs to be replaced, and it will take 2 weeks to obtain the new part from LG warehouse in California. 2 weeks more will add up to a month of handwashing dishes (from the first upsidedown F and E error message). Repair guy also said he sees "a lot" of thermistor failures on this model. One would expect parts availability if this is a common problem. We have an LG refrigerator that is absolutely brilliant. This dishwasher has not performed well from day one and is obviously a poorer execution than the fridge. I am advising all who will listen to avoid the LG dishwashers.

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Thermistor problems are really very rare.  One thing to look for is a possible broken wire in the door assembly.  Remove the front door panel.  Locate the wire harness.  About 1/3 of the way up from the bottom of the door, look for a broken wire.  If no broken wire, look for a kinked wire that may be on the way to being broken.  Once all the broken wires are repaired, the unit should work fine.  If there is no broken wire, then have the thermistor replaced.

Posted on Apr 27, 2008

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Error code E8 appears mid wash, heater is working ok, machine has been hooked up to the hot water instead of cold. I have since directed cold water through water valve.


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call a service center and get the explanation for the error codes and that will explain what is faulty
you didn't mention the make and model of the unit and every error code appears different
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