Question about LG LRE30451 Electric Kitchen Range
Unable to set clock or turn on oven when pushing Start Button. Possible PCB membrane not connecting to the relay
The lock and unlock works well for the 4 - 5 button problem. However the "start" button failure is another problem altogether. I had this problem and found that the ribbon connector attaching the membrane switches to the circuit card (PWB) is where the problem lies. The ribbon cables (two of them) are connected by a pressure contact connector mounted on the PWB. This connection method is less than robust. the fix is to pull the ribbon from the connector, clean it carefully with a paper towel and some alcohol, and reconnect it. To remove the cable the connector has a small flange that pops up about .05 inch whn you pull on the connector. Once it pops up gently pull the ribbon cable out of the connector. To replace it just push the ribbon back into the slot on the top of the connector and snap the flange back down. I strongly suspect this connector will get dirty again every couple years as the oven vent fumes are not properly prevented from partially passing over the PWB right where these connectors are mounted.
Posted on Dec 05, 2009
This happened to me on Christmas Day morning & it happened once before. I finally remembered how I fixed it. There is a lockout feature on the oven - push the "Clear" button & then push the "Start" & keep it held in until you see the lock button light up (takes awhile) & then push the "Clear" button again. After I did this the "Clock" worked again - reset the clock to the correct time & push "Start" Then click on "Bake" set your temperature & push "Start". Hope this works for you. It got me out of cooking Christmas Dinner!!!!
Posted on Dec 27, 2008
Our LG range suffered from the "4" and "5" buttons not working, the large-to-small element selector not working plus several up and down functions not enabled. Technician unplugged the range, removed the back, unplugged and repluggged all the ribbon connectors. All works now.
Posted on Dec 22, 2008
Here's what it looks like in the locked position
Pull on the ribbon to remove. ReLG Electric Range Oven touchpad buttons not workin - 9_23_2012_2_19_55_pm.jpgll.
Posted on Sep 23, 2012
My LG oven/stove top would come on only when they wanted to. I have had numerous problems getting the buttons to work. Cleaning the ribbon made all of the difference. It's a shame to spend the kind of money for this type of range and get this poor quality of product and absolutely no help or concern from the manufacturer. I will under no circumstance purchase any LG product of any kind in the future. I will cook with wood if that's what it takes. If you have the same problem, I would suggest using the above solutions from "ironmc" and "jcgrimes". My stove top and oven are now working. Thank you!
Posted on Dec 21, 2009
I don't have any solution except the possibility of a class action lawsuit against LG. I too, have been having problems with the touch panel since the stove was about 18 mos old. This is an expensive stove and we, as consumers, should not have to put up with this. it is time for companies to stand behind their products with a reasonable warranty (5yr for this stove) based on what you pay for it.
Signed - A very unhappy LG consumer!!!!
Posted on Jun 21, 2010
Cleaning of ribbon solution...worked for me. YES!!!
Our first failure happened under warranty, so the panel was free, but not the labour...arghh.
A second failure of some buttons happened just a year after, and I luckily happened on this thread. It's a very simple fix and took less than half an hour.
That probably means that on failure 1 there was no need to replace the whole panel; merely disconnecting and reconnecting the ribbons is all it takes. What a waste that was.
Posted on Apr 18, 2010
Jcgrimes Solution #4 - fixed our stove and saved us $110 - the cost of a repair person just to look at the stove. I had the same issue the START button would not click and turn on. Taking off the panel is easy, but getting it back on is a little bit of a chore. It took us about 45 minutes to fix, but well worth the savings. LG no longer makes this model - the warranty for this $800.00 stove is only 1 year. I will never buy LG again because they don't stand behind their product.
Posted on Jan 06, 2010
Disconnected large ribbon wiped it off pushed it back in as far as it would go the recliped the snap.. worked great!! thanks for the sugg.
Posted on May 25, 2010
Just as jason_lee_kl described, I cleaned my ribbons. I used a q-tip and rubbing alcohol to clean, and a little dielectric grease to keep the connection clean for long term. Any autoparts store or electrical supply place will sell you a small amount of this grease for cheap, and it's made for electrical connections.
I waited 2 months to post this, and I have had NO problems since using Jason's solution. Like all of you, I had sporadic problems with ALL of my buttons. Thinking it was a computer or brain problem, and having no reset listed in the manual, I would flip the breaker. Then different functions would either work or not. The zero may not work for the oven, or one of the burners would not let me go up, but I could go down, etc.
ALL PROBLEMS GONE!!!
Posted on Jan 18, 2013
Thanks so much for the advice. Had a Sears repair already booked but decided to try the above solution. Start button & timer/clock setting buttons all not working after a self-clean cycle. As suggested I removed the top back panel along with a few screws from the lower panel so the top would slide out. Pulled the blue ribbon out of the blue connector (after sliding connector partially in & out a few times, ribbon slide out & I wiped it & placed it back into the connector. Oven working like a charm & saved at least a $99 service call & likely the unnecessary cost of a new circuit board. I had already replaced the circuit board for the stove top 20 months after purchase & stove is now 5 years old. What a lemon!!!
Posted on Jun 23, 2011
I don't have anything new to add but I wanted to add another confirmation to the fix that's stated here with the blue ribbon cables. My left rear burner would turn on and the left front would too, but only if the rear one was also on. The other 2 burners, the warming zone, and the oven would not turn on. I could set an oven temp but the start button wouldn't work. On rare occasions it would but it wasn't predictable. I removed the two blue ribbons cleaned them and reseated them and everything now works perfectly. I didn't see any dirt or grime on my ribbon connectors and I'm not sure if cleaning them or ensuring they were seated properly was the actual fix. Either way give this a try. 20 minutes with one person and a Phillips screw driver is all it takes. PS. Much thanks to the previous posts for providing the solution. Having a working stove for no repair costs means SO much to me and my limited budget. Thanks!!!
Posted on Dec 16, 2013
We can get the stove on but we cannot turn it off, So now we go downstairs and flip the breaker. We can only get 2 of the burners working. I called LG and they told me it is not under warranty because it is just over 2 years old but they did agree to send a tech out to diagnosis the problem and see if it is flaw in the design. Now looking at this page I now know it is. Not happy with LG at all.
Posted on May 23, 2010
I have been doing the ribbon cable cleaning every year now since we bought this POS.
Has anyone tried anything to permanently(or more permanent) fix this. Like shielding the connection with silicon or something.
Posted on Dec 31, 2014
The ribbon clean fixed my problem also - thanks so much for saving me the cost of a service call!
Posted on Nov 05, 2014
You are my hero fixed my problem as well. Just spoke to LG earlier in the week and was just about to call service tech.
THANKS A MILLION!!!!!
Posted on Jul 03, 2014
Solution 1 worked perfectly. Only problem I had was that I used an alcohol pad to clean the ribbons and the first pad I used didn't have much alcohol. After I used a better pad it worked great. Thanksgiving is saved!!!!
Posted on Nov 17, 2012
Just pulled the ribbons and cleaned the leads with alcohol, worked like a charm. Took me less than 15 minutes. THANK YOU, THANK YOU , THANK YOU!!!!!!!!!!
Posted on Aug 17, 2016
If ribbon comes out of connector by mistake is that a problem?
Posted on Feb 05, 2016
First time buttons stopped to work on my LG oven about 6-7 months ago, problem went away by itself, then on Thanksgiving morning start button was dead and we could not turn on oven. I came to this page and used alcohol to clean ribbons. Worked! Them stopped again, and again, and again. Last time i did not even put the top panel back on. Easier to get there to unplug the ribbon, wipe it with alcohol and play it back in. LG is garbage.
Posted on Jan 07, 2016
Thanks, I re-seated all of the jumpers on the boards, gave them a thorough cleaning with alcohol, swabs, and a dental pick. And it WORKED!.. Thank you Denizens of the interwebs, you just saved me lots of cash. :)
Posted on Nov 30, 2015
Thank you soooo much!!!! Solution one worked!!
Posted on Mar 05, 2015
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