LG Range LRG3091ST/02 - Oven Shutting off after preheating

[jbinkley]

Model Number

LRG3091ST/02

Brand

LG

Age

6-10 years

Hi Folks, We just had our first child and friends have been dropping off food daily for us! Well it's not a good time for the oven to stop working.

When I start the oven no matter what temp I set, it will preheat then shut off. Not the oven itself but the ignitor then gas will turn off.

I was looking at some of the other post on LG ovens and preheating but ours seems different. The ignitor turns on every single time in about 60 seconds and also have no issues with broil, so me it does not seem like a igniter issue?

I also pulled the temp sensor and I am getting the correct ohms, so that seems correct also.

Below is a video that I hope will help. Thanks for your time!
Click for video LINK - Preheat video

 

[Jake]

We just had our first child

Congratulations!

When I start the oven no matter what temp I set, it will preheat then shut off. Not the oven itself but the ignitor then gas will turn off.

When the glow bar shuts off, is the temperature at 350 in the oven? Do you have a oven thermometer you can put in the oven to see?

The analog dial type oven thermometers don't read the temperature in "Real Time", and does take about 15 or 20 minutes to "Catch Up" with your actual oven temperature.

The only way to get an accurate measurement of the oven temperature is with a digital multimeter and thermocouple.

Here's the one that I always use:
Digital Multimeter DM10T


Read what our tech bigbuck said here:

FIXED - KODE507ESS02 oven does not maintain temperature

Upper oven of our double oven now 15 months old has never baked right and unfortunately didn't get to measuring temps until now. Preheats just fine to correct temperature, and will maintain that heat with nothing in oven. When baking, oven loses heat in latest test from 350 down to about 315...

www.applianceblog.com

Jake

 

[jbinkley]

Hi Jake, Thanks!

Yeah I am an idiot, I let it go longer tonight then realized that is how a gas oven operates. Gets to temp, shuts off, maintains temp then turns back on to get to set temp ( I think?) I will use my smoker thermometer and do some more testing tomorrow. My wife said it doesn't seem to maintain temperature and I did for the first time tonight get a F-11 error code if that helps.

 

[Jake]

Gets to temp, shuts off, maintains temp then turns back on to get to set temp ( I think?)

Yes, that's how it works.

My wife said it doesn't seem to maintain temperature and I did for the first time tonight get a F-11 error code

F11 is usually a faulty glow bar oven igniter.

Here's the glow bar oven igniter for your model:
MEE61841401 Ignitor


I explain it in post #2 here:

FIXED - LRG3093ST LG Oven F11 Error

I am getting an F11 error when preheating my oven. The temp shows at 100 and then switches to F11 when the oven fails to heat above that temp in 5 minutes. Or so i've read. I've read this could be due to a bad ignitor. I question that solution because it usually works (99% of the time) fine...

www.applianceblog.com

Jake