Question about LG LRE30757ST (Electric) Stainless Steel Range

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LG Oven "resets" itself and displays 'PF' when I try to bake/broil/convection cook

I've got an LG LRE30757ST oven that "resets" itself when I try to bake something. The range works fine, the warming drawer works find and the proof function of the oven also works fine, but whenever I hit bake or convection (operations that require high current draw) I hear a click and a sound like the heating elements are warming up and then I get the PF reading on all the oven displays as if the power went out. Any help on diagnosing this problem. Does anyone have a service manual to help with the diagnosis and subsequent repair part purchase. Thanks, Greg

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6ya6ya
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Posted on Jan 02, 2017

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TheMobilian
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See page 30

Posted on Mar 30, 2010

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heatman101
  • 43501 Answers

SOURCE: My oven is not working properly Went to bake a

Hi,
If your electric2_bing.gif oven is not heating then you probably have a bad heating element in your oven. This is not that hard to fix yourself...
Check out this tip that I wrote about the Oven not heating problem..

Oven Problems Electric2_bing.gif Oven is Heating Slowly or Poorly
http://www.fixya.com/support/r4511800-oven_problems_electric_oven_heating

heatman101

Posted on Jun 01, 2010

  • 2006 Answers

SOURCE: LG Range LRE30453ST quit working.

I can tell you aren't familar with house wiring. So we will start from the beginning. Circuit breakers are rated by the AMPERAGE that it can handle. When there is a current surge above the rated AMPERAGE the breaker is supposed to trip. When the breaker trips it doesn't always trip all the way to the side, sometime it looks okay so shut the circuit breaker off and reset it and then do it again to make sure you did it right the first time. If that does not cure your problem you might have blown your thermal fuse (Item #5016) or blown the power control board (Item #5070)

http://www.searspartsdirect.com/partsdirect/part-model/LG-Parts/Range-Parts/Model-LRE30453ST/3204/0124111/F0903017/00005?blt=06&prst=0&shdMod=LRE30453ST

But since the display screen is also completely blank it could be one of the PCBs in the control panel.

Posted on Aug 16, 2011

richroth
  • 9472 Answers

SOURCE: LG LRE30451 won't maintain temperature

Check the oven temperature probe (thermister) to see if it is good. To check it, use a multi-meter and Ohm it out. It should be between 1100 and 1600 Ohms. If it is out of tolerance, you will need to replace it. Here is the part to order.

Posted on Nov 30, 2012

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