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LG Wall Oven F9

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Oven Repair (including Ranges and Cooktops)

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I have an LG wall oven showing an F9 code (oven not heating) any ideas as to what is wrong?

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Old 01-10-2013, 02:36 AM
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Default LG Wall Oven F9
Model Number: LWS3081ST   Brand: -other-   Age: 1 - 5 years   

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I have an LG wall oven showing an F9 code (oven not heating) any ideas as to what is wrong? I need parts manual and wiring schematic but I suppose that is hard to get. Internet search yielded one answer that on there oven it was the thermostat. They replaced it and it worked a while and the thermostat went out again. The parts diagram on this website show two thermostats. Also should I replace the thermistor? I am mechanically inclined and should be able to do the repairs myself, I think.


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  #2 (permalink)  
Old 01-10-2013, 03:00 PM
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Hello,

The problem can be a bad oven sensor, aka a thermistor (#5021 at the diagram), a bad safety thermostat (#5116 and #5117 at the diagram), a bad Bake heating element (#5514 at the diagram) or a bad main control board (#2006 at the diagram).

Check the thermistor, the safety thermostats and the heating element for continuity.

The normal readings are: The thermistor - 1100 Ohms @ 77F; The safety thermostats - 0 Ohms; The Bake heating element - 22 Ohms.

If all of the above parts check OK, replace the main control board.

- The thermistor Part number: 6322B62214A

Part number: 6322B62214A



- The safety thermostat 5116 - Part number: 6930W1A003X

Part number: 6930W1A003X



- The safety thermostat 5117 - Part number: EBG51439301

Part number: EBG51439301



- The Bake heating element Part number: MEE41716501

Part number: MEE41716501



- The main control board Part number: EBR43296802

Part number: EBR43296802



Here are the breakdown diagrams and Parts for LG LWS3081ST - AppliancePartsPros.com

Gene.
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