How to Troubleshoot & Replace Lg AP4445128 / 6500EL3001A Dryer Moisture Sensor Bar

I have the optional steam feature on my dryer. There were some differences from the video. It was the high-limit thermostat. I found the appliance parts pros website and found their list of parts that were most likely to be the problem. Reviewed a repair video and it seemed to be very clear, well produced. One of the stories I read on the site mentioned ordering the 4 most likely parts for around $50. That made sense to me so I did that. Later, I found the LG service manual online - the dryer actually has a pretty comprehensive set of diagnostic tests that you can run from the control panel; I probably could have identified the specific part that failed and ordered just that. But I don’t regret ordering all 4 parts - the parts are pretty cheap and it’s a lot of disassembly to get to them - might as well replace them all while you’re in there. The service manual also described how to test each part with a multimeter. It was helpful to know that one of the parts, the hi-limit thermostat really was bad. Nice to know you are going on more than hope when you put it back together. I followed the video on my phone, very helpful. Some of the screws on my machine were very tight. I’ve learned from experience to brace the work piece against something solid, put the palm of my hand on the end of the screw driver, put my weight into it and turn very, very slowly until you hear/feel the screw turn. It would have been really easy to strip some of the screw heads otherwise - not the end of the world but a pain that might cost you a trip to the hardware store for another tool to remove the stripped screw. As I removed the screws, I tore up strips of paper, wrote down the name of the part I was removing, and taped the screws to it. They aren’t all the same and this made reassembly a lot easier. The steam dryer has some differences from the model in the video. The position/number of connectors on the back of the control panel is different but you still disconnect all of them. I took pictures of cables before disconnecting in case something wasn’t clear during reassembly. The way the wiring harness is clipped to the brace is different - a single zip-tie with a locking nub on it. squeeze the nub on the back of the brace and gently pull harness away from brace. Brace looks different and screws were a little different. There is a rack of components front-to-back on the left side (facing front of dryer) right behind the drawer with the water container. You can leave the internal parts alone but you need to remove the drawer. There is a big locking tab on the bottom in the back - just reach in to drawer and push down to pull drawer out. When you do, you’ll see two screws in the front of the control panel. These aren’t mentioned in the video and you have to remove them to remove them to remove the control panel. Requires slightly more care lifting the drum out because you have to guide it out under the steam equipment. Beyond those minor differences, I did what the video said and everything went smoothly. I suggest using post it note or similar to mark the front of the drum when you take it out to make sure it goes back in the same way. I took the dryer apart before the parts came and moved things around more than once before I put it back together. I think it matters which way it goes - not sure - but better safe than sorry. You can’t really see what’s going on with motor and idler pulley with the drum in place - I put it back on by feel. Then I stuck my phone in there and took some pictures to verify I had it on right. When I put it back together and plugged it back in, everything looked good - powered up, etc... until I hit the start button. The time flashed and the dryer didn’t start. The service manual came in handy again. It explains how to enter the dryers diagnostic mode. As soon as I did that, I got an error code indicating that the door was open, it wasn’t. Took the top back off and found that I’d missed one of the plugs connecting to the control panel. Plugged that in, put everything back together and we have our dryer back working again. Pretty easy to do, took more time just because It was new to me and I was being careful. I took a lot lint out of the vent. I think that’s why the hi-limit switch died. Gotta clean the vent more often. 

After reading several stories online about what to replace to fix the issue with my dryer not completely drying my clothes I decided to purchase a heating assembly, a sensor and a thermistor. I am not sure which one of these three pieces corrected the issue, but my dryer is back to drying my clothes as it should. The Youtube video's are priceless in helping to find and replace the parts. 

Replaced the moisture sensors along with 3 thermostats, in addition I replaced the felt drum seals ( I was getting lint around and on top of the dryer), drum belt, door seal, drum rollers and pully. It was easy to do and good instructions on videos. Parts were perfect replacements and delivery was exceptional. Now my 9 year old LG dryer is back to new and drys clothes perferctly. Thanks for the great parts, and video instructions. 

Replaced dryer motor and idled pulley. The motor went south on us. I pulled the dryer apart. They are pretty easy to work on. I didn't look up any instructions. I paid $180 for the motor, a new idler pulley and a sensor bar plus the $25 for the 1 day shipping. Overall the repair was pretty straight forward. The longest part was giving everything I good cleaning inside the dryer. I would do this again and I plan to use this company in the near future to replace the bearings on my washing machine. This dryer is 10 years old. If I can get another 4 or 5 years out of it I will be really happy. 

The dryer is 10 years old. I replaced all 4 roller wheels. While I had it apart I also replaced the drive belt and the idler pulley assembly. Once I had it apart I did find 2 wheels that were very worn, (1 front, 1 back) which is what I believe the problem was as they were also very hard to spin. Dryer works like new now. The repair video was VERY helpful. 

I read the stories once I put in the brand and model number. I also looked at the parts that had the highest % that fixed the issue. I decided that I would just buy them all (the cheap ones) since I really didn't know which one(s) would correct the issue and all together total cost was just under $100. Parts were shipped quickly and from two different locations. The total repair took about 4 hours with nearly all that time spent in disassembly, interior cleaning and reassembly. The actual time to replace the parts I ordered was less than 20 minutes! I replaced these: Thermistor Assembly, Thermostat, both Moisture Sensor Bars, Burner Tube Thermostat and the High Limit Thermostat. Now the dryer works like a new one. 

First I looked up what the error code was and I found out that the issue might be the moisture sensor bars so I found a video put out by Appliance Parts Pros that was very helpful. The video showed me where to order the parts and how to replace them once they arrived. Unfortunately, this didn't fix the problem. The part that was bad ended up being the high limit thermostat and I was able to find another video from Appliance Parts Pros on how to change it. I purchased the part and followed the steps on the video and changed it out. 

Wasn't sure how to test the components so watched the on line vedios and had no problems. Works fine. Wife happy, I'm happy. 

I did a search online and came across an article on appliancepartspros.com that listed each part that could be replaced to solve the problem. It also listed the percentage of time that replacing a particular part solved the issue. I bought all the parts for about $50 and since I had the dryer apart I replaced them all. It took me about an hour following the videos on the site from my laptop. Dryer works great!! 

We called a repairman out who was rude, obnoxious and seemingly incompetent. After an hour of dissembling our dryer, he quickly slapped it back together and told us it would be $200 to fix. No other explanation. We sent him on his way and I found your site, found the ($5) part and watched the 5 min repair video. Ordered the part and had it in our hands in less than 48 hours. I had the dryer repaired in 20 min. Saved us a lot of money and made me feel pretty good about my own normally meager home repair skills. You guys are fantastic and our new first stop whenever anything breaks down at our house.