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LG Microwave Repairs
If you're looking for help fixing your LG Microwave, look no further! Our comprehensive LG Microwave repair guide will explain common issues, provide tips, and maybe show you how to repair your appliance.
For the home, kitchen and beyond, LG manufactures appliances that homeowners have come to trust. Even a trustworthy appliance requires occasional maintenance or repair, however. If you’re in need of LG appliance repair from experienced professionals, your local Appliance Helper can help.
LG Microwave not heating
Diode. The diode converts the A/C power output of the transformer to D/C, doubling the voltage to nearly 5,000 volts. This high voltage powers the magnetron to heat the food. If the diode burns out, the magnetron won’t receive enough voltage to operate, preventing the microwave from heating. When the diode fails, it is often visibly burned out. Inspect the diode and if the diode is burned out, replace it. If inspecting the diode proves inconclusive, test it with a multimeter that uses a 9-volt battery or put a 9-volt battery in series with the diode. When the leads are reversed, the diode should only have continuity in one direction. (Warning: The microwave oven can store a lethal amount of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the high running voltage and the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the diode.)
LG Microwave not working
Line Fuse. If too much current passes through the microwave circuitry, the line fuse will blow. If the line fuse blows, the microwave won’t start. To determine if the line fuse is at fault, use a multimeter to test it for continuity. If the fuse does not have continuity, replace it. In addition, you should investigate and resolve the problem that caused the fuse to blow. If you don’t resolve the underlying issue, the new fuse will blow too. (Caution: The microwave oven can store thousands of volts of electricity in its high voltage capacitor, even after the microwave oven has been unplugged. Due to the potential for electric shock, it is extremely dangerous to replace the electronic components in a microwave. Only a licensed technician should replace the line fuse.)
LG Microwave light bulb not working
Light Bulb. The light bulb itself might be burned out. Replace the light bulb before replacing any of the parts associated with the light bulb
LG Microwave shuts off after a few seconds
Door Switch. A door switch might be failing intermittently. Check each of the door switches for signs of overheating, arcing, or burning. If you don’t see any obvious signs of failure, use a multimeter to test each switch for continuity. If any of the switches is visibly damaged or only has intermittent continuity, replace it.
LG Microwave turntable not turning
Turntable Motor. Use a multimeter to test the motor for continuity. If the turntable motor does not have continuity, replace it.
LG Microwave buttons not working
Touchpad. To determine if the touchpad is defective, try pressing each of the buttons on the control panel. If some of the buttons respond correctly while others don’t, replace the touchpad.
LG Microwave display not working
Main Control Board. If the display goes out partially, the display board is more commonly at fault. If the display isn’t working at all, either the main control board or the display board could be at fault.
LG Microwave turns on by itself
Main Control Board. First, make sure that the touchpad is working properly. If the touchpad is working properly, the main control board is likely at fault. If the control board is defective, replace it.
LG Microwave is sparking or arcing
Waveguide Cover. The waveguide cover might be damaged and shorting out. Try removing the waveguide cover and see if the problem resolves. If the waveguide cover is burnt or will not stay in place, replace it.
Related Error Code Pages:
LG Refrigerator Error Codes, LG Range Error Codes, LG Washer Error Codes, LG Dryer Error Codes, LG Microwave Error Codes, LG Dishwasher Error Codes, LG Television Error Codes,
Related Troubleshooting Pages:
LG Refrigerator Troubleshooting, LG Range Troubleshooting, LG Washer Troubleshooting, LG Dryer Troubleshooting, LG Microwave Troubleshooting, LG Dishwasher Troubleshooting, LG Television Troubleshooting,
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LG Microwave Repairs
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LG Microwave help
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We purchased all LG appliances in 2012, I had to replace the microwave in 2015 and again in 2018, they just stopped working. This last one I had stopped working 1/2 thru cooking, the turntable stopped turning and it would not heat. 3 microwaves since 2012... These are not made to last, its sad, I liked it when it was working, I would not purchase this brand again... And when I complained to LG all I got told was, Sorry. Its not under warranty. JUNK.
Purchased our LG microwave about 10 months ago to replace a GE dinosaur. The LG is sleek looking, powerful, loaded with easy features and most importantly, quiet and the alert when its ready is almost pleasant.
Purchased top of the line LG microwave. Have not had it (6) months - it got so hot that had we not noticed & pulled it out I believe it would have started a fire. It burned up! NEVER will I purchase a LG product.
Great microwave for the inexpensive price! I would purchase this product again if needed. LG makes good products at a fair market price. I always consider buying LG products with no regrets. I recommend LG products.
Worst experience I have had as a consumer - ever. I ordered an LG microwave 1/3/18 through a third-party, AJ Madison. It was delayed weeks (not LGs fault), when I finally received it and plugged it in it had a code of death - F11. It never worked, not even ONE SECOND. That was middle of March. Its now May 3, 2018. I have sent in repeated receipts, responded to their letters, requests for more information, taken pictures, cut up serial numbers, signed declarations that I did in fact buy the microwave. Gotten the third party involved and had them try on my behalf to no avail! They now want me to send them a receipt having bought a second one of these before theyll send me my money back for the January 3, 2018 purchase! Im on hold again with LG, 26 minutes into it and the customer service wants to explain the process to me - youve got to be kidding me. LG, as a very American, cooperative consumer who has purchased 14 appliances in the last year and done lots of shopping - this is the WORST customer service experience I have ever had!
When we purchased our house 3 1/2 years ago we purchased a new LG French Door refrigerator. We had checked the reviews and all were good. The fridge worked great for the first 3 years or so. About 4 months ago the ice maker stopped working. We did some troubleshooting of the issue but to no avail. It was no big deal at the time, we just started using ice trays. We should have known at the time that something was very wrong. So about 4 weeks ago the refrigerator died. We lost all of our food and had no back up at the time. The day it died I called LG customer service and they set me up with a company called A&E Factory Service. After a day A&E called me and said the soonest they could get a technician to my house was 2 weeks away!I complained enough to the point where I worked it down to a week (again no refrigerator).. A week of eating out goes by and the technician shows up for my service call. He troubleshoots the refrigerator and says the compressor is toast. He says he needs to order everything in since he doesnt keep anything on his truck. He schedules another appointment with me which is 3 WEEKS AWAY. So now Im looking at four weeks without a refrigerator. So after the 3 weeks the new technician shows up and replaces everything on the fridge (compressor, coil, and two other heater items?). 3 hours later he says, Were all set. give it a day or two and itll be all set. Well 2 days later its not all set. Still broken, still not cooling at all..I called LG again and demanded they send me a new refrigerator and was told that I needed to have a service technician back to the house to see if it really needs to be replaced or if they can fix the problem. IS THAT NOT WHAT THEY WERE SUPPOSED TO DO IN THE FIRST PLACE DURING THE FIRST TWO CALLS!!I have now been without a refrigerator for over 4 weeks. I have taken two days off from work, one for each visit, which has cost me a lot of income, and will now have to take at least an additional day off for a third visit. I have a family of five and we are continuing to either eat quick made meals or eating out which is costing a fortune. I am completely fed up at this point. Never will I purchase another LG product. Which is very unfortunate since I already have 2 LG tvs, 2 LG soundbars and an LG microwave.
I bought an “LG Microwave Smart Inverter Magnetron” at Lowe’s, the higher priced larger microwave. After a few short months it completely stopped working while I was using it to heat up food. Only use is frozen meals, or heat food / drink about once a day. The longest period of use is 8 minutes. I contacted LG and they asked for a receipt before they would refund. I sent the receipt via email as they requested. After 6 weeks, they called and said I would need to go buy another LG and THEN they would reimburse me after I sent them a proof of purchase. The problem with that is, I don’t want another LG because of the chance of breaking and going through all of this AGAIN! Also, what if I get stuck and I am then $600 down the drains. The customer service is in Hong Kong and I had a difficult time communicating. #NEVERLG!
This microwave has a 10 year warranty on the inverter. I’ve had this microwave for less than two years and the inverter has stopped working. I contacted LG and was given three LG approved companies to contact for the warranty work. Each company told me the labor cost would be more than the microwave was worth. I contacted LG again and was told there was nothing they could do, and I should buy a new microwave at my own cost. I purchased this microwave because of the advertised warranty. Given that labor costs likely always exceed the purchase price of the microwave, this warranty is designed to be unusable. What a scam.
I cooked below the microwave. The steam and heat from cooking and combined with cooking in the microwave has crumbled the plastic that secures the lower handle. It is now taped on. A new door is 260 dollars. I cant afford that. What good is a microwave if you cant use it? Really!!!!
The handle broke on the built-in microwave making it virtually unusable. Came with the house, only 5 years old and cant get a replacement handle. I would never buy any LG appliance because they are **. Very unhappy. The fridge we have has had a problem as well.
The microwave is very easy to use and installed, love the way it looks. Has a very up to date style to it. It works very well, heats the food or beverage up very evenly. Love the color of the front glass window.
I purchase this microwave for $116.00 at Home Depot. It is 3 days over the 1 year manufacturer warranty and last night it started sparking and there are burnt spots on the inside! Only 2 people have ever used this appliance, its been kept clean and properly used. I will never buy an LG again!!
LG will get sued when someone dies from a knob being turned on accidentally. I’m surprised it hasn’t already happened. It happens all the time. Especially when friends/family are over. How could LG think was a good design? Was there no testing? Were they 3 feet tall? Also the burner disc discolor and never clean up. The super burner stains on the silver and you can’t get it clean. Bought this and the microwave you can’t see into without a stool. And it’s still hard to see in. LG, you dropped the ball here, learn from those mistakes. NOT recommended.
This is a microwave that requires reading the instructions before use due to all special features. There are 4 speeds for vent, control of the turntable, and the ability to customize heating times. Safe, efficient, roomy, and owners manual is well written.
The LG microwave we purchased went out on us after we cooked the first potato. We had the LG microwave no longer than 2 weeks and had troubles. After working with LG for almost a month to have them fix the microwave LG blames A&E and A&E says there is nothing they can do without LGs approval. This went on numerous times and 3 appointments with the tech. so no microwave for Thanksgiving. Now No microwave for Christmas. Warning for whom is interested in this product that buyer beware! Our Sears Technician said that this microwave seems to go out quickly. I am a General contractor and have been building homes for over 19 years. This has been the worst experience I have ever had. Sincerely, Curt with Nail it Down Construction
In November 2011, we purchased an LG Microwave (Model LMV1813SB). It lost power a month later and had to be serviced by LG. It went out again a week later. An LG service person came out and worked on it again, but due to the LG policy, would not replace it until after four service calls. We had the issue again in March and April and finally they are replacing it. My complaint is the extremely poor policy and customer service that LG has. They would rather have the customer go through the time and effort of not having a microwave, making numerous phone calls to LG and scheduling time to have the microwave fixed. This is such horrible customer service. The time and effort we have had to go through to replace the microwave is more than what the microwave is worth. Here is the icing on the cake. LG has shipped our new microwave but told us that the one year warranty does not include removal and installation. I had to argue to get them to reimburse me for this. I will never buy another LG product based on this horrible customer service experience!
I will never buy another LG product again. This microwave needed major repairs within 18 months of my purchase. The first repair happened when it was still under warranty but I had to pay for service and when the second repair was needed, the warranty had expired. I called LG to ask for a warranty extension with the argument that a relatively new appliance should not need major repairs twice. In fact, the microwave I had replaced with the LG was over 10 years old and had never needed a repair. I replaced it because it was old looking and I was remodeling my kitchen. LG would not extend the warranty and the repair with service would cost more than replacing it. I argued that they should replace my microwave but was denied. Again, I will never buy an LG appliance again.
My LG microwave is not working and failing every time. The service people accepted that there is some manufacturing defect but not replacing. They have charged more than Rs. 2000 at different visits but still not working.
Purchased this microwave February 2015. Have had several electrical problems. Circuit board shorted out, micron blew out, the sliding door for the exhaust fan broke and had to be repaired. It takes forever to receive replacement parts. Will never buy another LG microwave.
Bought the microwave from Walmart in 2019, used it without issue for about a year. Last night, I put something in to warm for 1 minute. (No metals etc of course.) And no sooner had the minute started I turned away, heard a huge grinding whoosh noise, turned back to see fire coming from the right side panel. It made the sound again, another burst of flame and I shut it off. I had the unit unplugged and set outside. I contacted LG with a pic of a clear burn mark on the right panel, explained what happened and they told me too bad, nothing they can do, try returning it to store. ALSO, they further accused me of exploding something in the microwave itself. This was the suggestion of a supervisor. I am appalled and surprised at how they handle this situation. I would seriously reconsider buying anything from them. This could have ended up so much worse than $150 down the drain.
My microwave not heating and it is just two years old.
Ive had this LG model LMV1683SW microwave under 2 years, and Im tearing it out of my kitchen and throwing it out. First, the turntable started making this awful rumble. LG said its crumbs in the track. The track was clean, but I cleaned it anyway. Still rumbled. Then sparks and small flames started shooting out of a vent hole near one of the shelf hooks. I removed the metal shelf thinking that was the issue, but it was not. It happened again, and this time I unplugged the unit, and Im removing it from my wall. LG says their initials stand for Lifes Good. Should be Looking Grievous.
I like how its a touch screen. You just drag the bar with your finger. Its more effective than punching numbers. But, the microwave doesnt have a 5 seconds option so its hard to cook your food at your desired temperature. Also, its hard to keep it clean since so many girls uses it each day. I wish it was bigger so that more than one thing can be reheated since we eat a lot of leftovers or frozen meals.
This microwave is really a nice item to have and is very easy to use. All the items you can use in a microwave is overwhelming and a welcome use to the kitchen from melting butter to making a bake potato in a microwave. Great cooking item.
Lg microwave model # lcrt2010st - Stopped heating 1 yr. after purchase date. Call customer service and it was like calling a bush in my front yard.. No help at all. Miraculously stopped working 1 year after purchase. NEVER BUYING LG ANYTHING AGAIN!!!
This microwave is designed in a genius way! It’s large, you can select the type of food and status (frozen..) instead of choosing strength or time. It’s heavy duty, I don’t think people would survive it. It gives you the feeling it’s a luxurious and reliable product.
LG microwave quit working 1 1/2 years after purchase! I also bought a refrigerator at the same time!! Called LG support and was given a number for a repair service. Called Tarheel Appliance and Repair and was quoted $70 for someone to come out plus the cost of repairing the microwave which was going to put the cost well over $100! Tarheel Appliance suggested that I call LG back to see if they would extended the warranty since the microwave was just out of warranty. I was told that the warranty would not be extended!! Do not by an LG microwave! Quality is not there!! My previous microwave I had lasted over 15 years. I also bought a wireless LG headset that has quit working in 6 months too!!
This is the second microwave of this model. The first one worked fine for a year - until a few days after the warranty ran out. It was cheaper to buy a new one than to have it repaired, so we bought a new one because it matched the rest of our LG appliances. This one lasted less than 3 months. Home Depot requires 3 repair attempts before they wil take it back (even though we have the extended service plan on this one), so we got in touch with LG again. The same repair man came out and took it apart and put it back together again, saying he couldnt find what the problem was. It worked after that - for 1 day. When I called the repair company again, the tech said he would contact LG for us and get it taken care of. He did contact them, but we have only heard from them once to request more paperwork. Still waiting for the follow-up call a week later to get a refund. I will never buy another LG microwave. Very disappointed in their customer service.
The microwave has lost power twice within the last several months, making it so we could not cook because we depend on the FAN for EXHAUST. The microwave is 10 months old and every time I call LG, I am transferred out of country - impossible to understand or communicate. NEVER AGAIN! Please save yourself the headache and find another brand - one where the company stands behind its product and actually cares.
I am extremely happy with my LG microwave. I have not had any problems since I bought it 4 years ago and when the day comes that it no longer works, I will be sure to purchase another LG microwave. I have also recommended this microwave to family and friends.
This microwave has failed after only 18 months. Major failure, expensive to repair, it will have to be replaced. I dont recommend this microwave at all.
Very spacious with lots of labeled compartments make it easy to find things. Very contemporary design so it matches my kitchen decor. The freezer is located on the bottom which leaves more refrigerator room to store cold food and beverages. The water is filtered and ice can be cubes or crushed for drinks. Shelves are easy to remove and clean. The stainless steel is modern look and easy to keep clean. Overall I love the product. It matches my microwave perfectly. Designed very well. I dislike the temperature. Sometimes it gets too cold and freezes my refrigerator items and also there is an annoying sensor that beeps to let you know the door is open. It is a good and bad thing because it makes sure you remember to close the door so that food wont spoil but also its a bad thing when you are loading groceries and need the door open for a long time. I chose LG because it is a brand I trust and I know is high quality and durable to last me and get my moneys worth. I have other LG products so the purchase was inevitable and yes it has met my initial expectations.
The thermistor of my 3 years and 9-month old LG LFC25770st stainless, french door, $1799 fridge overheated and died. LG no longer makes this defective part. So instead of a $150 to repair, I will need $1100 to replace. I only need to spend $1100 to replace since they are generously pro-rating my fridge at $700. Did I also mention my matching LG stainless microwave died after less than three years? All my non-LG appliances that I got at the same time are still working fine, and so is the $37 countertop microwave we have been using as a replacement for the last year. Stay away from LG products.
I love the look of this microwave. My daughter bought it to replace my old one. It has so many functions and it works very well. Im glad she got it for me. It gets the food really hot. I love LG products and this has not let me down. I would recommend this microwave to everyone.
I've had my LG for 4 years now. It's over my stove and looks and works great. I was so glad when I was able to purchase to finish up my kitchen. My LG do everything from popcorn to cooking chicken. If you haven't tried LG product do so soon.
Bought LG Microwave about 1 yr ago. Loved it until it just died today. My last microwave was worked for over 15 years and was still working when I replaced it with the LG so it would match my kitchen appliances. Wish I had my old one back.
I have bought a LG Microwave from Home Depot in Nov 2018. It stops heating in Nov 2020. Called LG customer service 800-243-0000 about bad Magnetron which is covered for 10 years. They refused to ship me a part and only ship it to a technician. I told them I have serviced and repaired my appliance and I am DIY and installed the microwave. they still wont ship me the part. Also they do not cover repair service. So I am now forced to pay out of pocket for this repair. Never buy LG microwave again. Bad product from Korea! LG Electronics NeoChef 2.0 cu. ft. Countertop Microwave in Stainless Steel Model # LMC2075STStore SKU # 1002634890
To: The Manufacturers of Over-The-Range Microwaves. PLEASE, downsize. They keep getting bigger and bigger and bigger, to the point where I have to replace my beautiful expensive cabinets in order to accommodate the darn microwave. And from what Ive read on the internet, I am not the only one. It definitely looks like there is market for them that is NOT being fulfilled. Can one of the manufacturers please step up to the plate on this? Why is it that I can find a counter top microwave that is only 10-14 high, but when I look for an OTR its 16 and up.
We had our home built 15 years ago and purchased GE appliances and decided in 2012 to upgrade to stainless steel. We purchased an LG microwave and a LG refrigerator.. Model LFX31925ST.... It was the biggest mistake we ever made. The first 6 months the microwave had to be repaired and now the refrigerator light is out in the water and ice dispenser area. In addition the ice maker no longer works. The Smart Diagnostics says the first time that we have opened the refrigerator frequently... There are no children in the house and we eat out. The second diagnostic report says we are not closing the door and air is escaping. We had the GE products and NEVER had a problem. The only issue was they were white. We are both retired law enforcement and have been asked by friends and relatives about the beautiful piece of junk in our kitchen. I have referred them to ANY brand but LG. We have an LG television and I am waiting to see what happens with it. We will get it repaired and probably put it in our rental property or donate it to the Goodwill. Your appliances ARE A PIECE OF JUNK. I am so angry because my husband wanted GE or Whirlpool... but no I chose LG. Believe me I hear about at least twice a day!!!! Extremely dissatisfied customer!
I purchased an over the counter microwave, Model LMV1680WW. This was purchased less than seven months ago. First, the light on the bottom goes out then, the microwave just stops working. Now without a sales receipt, no warranty service. I know that they can tell when the unit was manufactured from the serial number but no receipt, no warranty. Ill never purchase another product from LG, no matter what it is. Its a shame, as I was going to upgrade to stainless after the new year.
We have had our LG Microwave for about 2 years, but today it started on fire when I went to re-heat up two slices of pre-cooked bacon. Pretty much as soon as it started, the right side wall started on fire! We opened the door and unplugged it. We are very disappointed with the quality of this microwave, model LMC0975ST. We have purchased two LG refrigerators for homes, two LG televisions and they have all been great, but not the LG microwave. I know this is a new technology, Smart Inverter, LG has claimed to put into these microwaves, so I can only speculate as to whether or not this had anything to do with the fire.
I bought a Microwave....LG, counter top....in less than one year it died. Since it was JUST under warranty someone came and fixed it...it was some connection that didnt work. Then you get 90 day warranty on the repair.....Great!. Now its a drop more than 90 days and guess what? It died again. Called LG...they said TOUGH NOUGHIES....very nice, isnt it....so now what....I pay $50.00 service fee plus repairs or throw the microwave out in the street and buy a new one. Not good business. Not a good appliance. I will never buy an LG again unless I receive some satisfaction.
2.5 years and the touch panel dies a slow death. First the #7 button stops, then the #0, and so on. This is our second LG appliance to fail in short time. My first microwave was a Sears and lasted some 15 years, as did my mothers, also a Sears product. Ill NEVER buy another LG product again. Breville will be our next buy.
Our LG microwave went out within months. LG refuses to repair or replace (THATS WHAT WARRANTY PROMISES) - only offers ORIGNAL WHOLESALE price paid by our designer, no shipping, NOT WHAT IT WILL COST US TO REPLACE even though we explained multiple times that the price was not what came out of our pocket (because of designer add-on) and not what the model costs now with inflation. We custom cut and trimmed for that microwave. We will be out $100 plus to replace it.
Bought a microwave in Canada in November to bring south for the winter as we are Canadian snowbirds. Arrived in Yuma, Az and about 2 weeks after arrival the microwave quit working. There is a manufacturing date of July 2015 stamped right on the microwave but all my paperwork for purchase is in Canada. I phoned LG and without the paperwork they will do nothing. I tried desperately to get some paper work from Canada but was unable to get. I therefore have to go buy another microwave to get me through the winter. I can get the micro repaired when I get back to Canada in April and produce the paperwork but then Ill have 2 microwaves which doesnt make much sense. I asked the LG person that I phoned how they could not just repair it when the manufacture date is stamped right on it. NO EXCEPTIONS he said. This to me is absolutely ridiculous. I will never buy another LG product as long as I live.
Just removed our kitchen last year. We brought this microwave in Aug 2017. Only lasted 14 months. One day was heating a biscuit, it started popping smell like wires were burning. Now it doesnt heat. Was told $125.00 just to come out. If it took longer than 15 minute to repair it would be another $65.00 up to $175.00. We decided that buying another brand would be better for us. We will never again buy a LG product. Our other microwave is a GE Profile and is over 7 years old and never had any problems. I wish I would have done a better job checking out LG appliances.
We purchased an LG microwave from Home Depot less than two years ago Model LMV1683SW/SB/ST. It stopped working. Everything worked on it, but would not cook anything. I called customer service, they said they would take care of the problem for $165.00 with no other options. No way. I called Home Depot and they said they might do something for us tomorrow. Will see. No more LG anything.
I havent had the microwave a year yet. Started smelling an electrical smell inside the microwave. Any food or liquid starts to smoke with a bad chemical smell. This was not steam! Unplugged for fire hazard and biohazard reasons. No longer using. Not worth repairing. Junk!
I purchased an LG Refrigerator Door-in-Door in December 2015. On September 14, 2014 I woke up to water all over my kitchen floor due to ice melted in freezer. First thing was to use troubleshooting guide. Did all resets suggested with no results. Called LG and went through all that again with them. Was told to reset and wait 24 hrs then check and call if not cooling. Needless to say this did not work. I lost a freezer and refrigerator full of food. All spoiled. Following Saturday a repairman came out and said that compressor was gone. They ordered a compressor on September 22, 2016. Today is Oct. 10, 2016 and I still have no resolution.I have made many calls both to LG and the place supposedly responsible for repair with no satisfaction. I have never encountered such poor customer service in my life. I just walked around my home and realized that I have 3 LG TVs, a Blu Ray, refrigerator, and microwave. Therefore it is obvious I have spent a lot of money on LG products. I now see that the company does not stand behind its products so I will not purchase any more of their merchandise. As I looked through the reviews I see that I am not alone. LG MUST NOT CARE ABOUT THEIR CONSUMERS. So as customers we need to let them know that there is no excuse for such poor workmanship or service.

