Question about LG LRE30755 Electric Kitchen Range
To all those who think this problem description couldn't be true, you're wrong. You're right that the aluminum did not get hot enough to melt though.....What happens is that the non-stick teflon coating they put on the aluminum get's too hot and bonds with the oven bottom.... like a crazy epoxy!
Furthermore, this isn't a problem in older, conventional-type ovens... this is moreso a problem with ovens that have a hidden bottom element.... The bottom element is actually directly below the oven bottom, and lining the oven bottom with foil is basically like putting it directly on the element. And that part gets extremely HOT!!!
Thankfully I've got the solution to this! But it takes some extreme patience, a lot of respect for what you're working with and some good ventilation.
I went back to my high school chemistry class to get the answer. It's Lye, aka Caustic Soda aka, Sodium Hydroxide.
I used Drano Kitchen Crystals off the shelf of the grocery store..it's about 70% lye with some added salts to aid the chemical reaction.
You'll need some plasticene, the drano, water, GLOVES!!, a lot of paper towels and wood skewers and GOOD VENTILATION.
Start the ventilation and open a window or door.
Put on your gloves.
Use the plasticene to create a dam about .25"-.5" high around the area in the oven you're looking to remove the aluminum from... the area's you're working in should be about 2.5" in diameter.
Pour in some of the drano into the dam and add enough water to touch all the sides of the dam......if the chemical reaction hasn't started (should be almost instant) keep adding the drano bit by bit until it does... the dam contents will start to boil and ammonia fumes and a little hydrogen gas will form....... hence the need for some good ventilation!!
Once the reaction is done, poke around with the wood skewer to see if the oven bottom is clear... if you're satisfied with the results, add some some vinegar in to help neutralize the solution a bit.... then use the wood skewer to remove the plasticene dam to a dish to be rinsed off ASAP.
Use paper towels to wipe up the mess on the bottom of the oven.... See your results! the area of the oven botton you treated should be free of aluminum and just be discoloured instead..... not from the drano, but from where the teflon bonded.
Repeat the process until the oven bottom is clean.
To get a 'feel' for the chemical reaction and what to expect, experiment first!... take a square of aluminum foil, go to the backyard with the foil shaped in a littlebowl and place it on a dish or pan, add some drano crystals to it then add a little water... step back from the dish and try not to breath the fumes!.. the dish will be hot!!
It took me about 6 hr to clean the bottom of my oven when this happened to me.
Hopefully this helps some other poor unfortunate souls who finds themselves in this situation!
Posted on Jan 20, 2010
Did you get an answer? We have the same problem.
Posted on Nov 27, 2009
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Posted on Jan 02, 2017
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Use "The Works Toilet Bowl Cleaner" to dissolve the foil. *Caution* when the cleaner is applied to the foil a chemical reaction occurs releasing some harmful fumes so please use outside or in a well ventilated area. I just did this to a Frigidaire oven I bought from Lowes at a discounted price. The previous owners bought it, did not read the owners manual or just disregarded the warnings on using foil in the oven and thought they would line the bottom pan with foil to help make it easier to clean (Good idea, but don't try it on the hidden element ovens). With the heating element being hidden under the drip pan the heat is hot enough to melt the foil and fuse it to the pan. Now most of the pans on these ovens are removable by just a couple of screws and I strongly recommend removing the pan when doing this. Squirt some Works toilet bowl cleaner on it in a well ventilated area and watch it go to work. It took about 15 minutes for it to dissolve all the foil on my oven, then I rinsed it clean and reinstalled it in the oven. The pan does have a slight discoloration on it, not from the cleaner but from the foil being melted onto the pan, if you choose you can buff this out. Most of the modern ovens have the ceramic coated drip pans in them so the Works toilet bowl cleaner will not harm them, unless you have scratched the finish off. Works Toilet bowl cleaner contains a fair amount of hydrochloric acid which is what makes this work so well.
Oct 23, 2007 | Kenmore 33169 Gas Single Oven
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