LG Flow Sense Test (aka Heat Test) for DLE7300WE

[@tdcaudio]

Nice, I just bought mine and it has slightly different buttons and says to hold Power, temp and wrinkle care. Your tip still work with the different buttons though. thanks for the post!

[@rebootninja8036]

Good to know! I thought I was going crazy using the wrong button combination until I found this procedure shared by another person. If you want to add your dryer model number to your comment, it may help others searching for it later on. Glad I could be of help 😊

[@tdcaudio]

@@rebootninja8036 I feel bad for another guy I saw in a thread from a couple years ago who was pulling his hair out and had called LG and they had no clue what the issue was or how to fix it. What a weird glitch to have in the board for years in a row, and you would think everyone at LG would know about it! Pretty sweet running that test though, mine said 80% blocked so I took the exterior vent off and shoved a 1.25" shop vac hose into the duct and pulled out a bunch of lint and other crap where the duct made an upward bend to get to daylight

[@tdcaudio]

LG dryer: DLE7150M different buttons, same procedure and success!

[@ShySlaton]

I think the display is INS not LN5. It’s an “installation” test. I have issues similar to yours where D80 just seems to be a regular occurrence if the load is larger or towels or something. My vent could probably use cleaning, but it vents to the outside and I can see air blowing. I’m trying to find what the numbers mean when the test is running. Mine did like yours and started around 31 and went up to about 51 before the test ended. Empty my dryer didn’t trip the D80 though.

[@OlehProtsiuk]

Thank you! How did you end up fixing it?

[@rebootninja8036]

We had a major hail storm earlier this year, and finally got our roof replaced last month. The roofer found a small clog at the vent on top of the roof - it’s a 2-story house and very steep so no way I’m climbing on the roof myself. They cleared the clog and installed an upgraded industrial vent - now towels dry normally on the first try! We can even use the energy saving settings on certain loads, it’s great. Our dryer has never worked this well at our house. I had also tried cleaning the vent multiple times with a super long cleaning kit, and upgraded the connection hardware at the dryer. Cleaning on the roof was definitely needed.

[@rebootninja8036]

To clarify, I also bought an extension kit for the dryer cleaning so I was able to get the lint out of the full length of the vent tube. That did actually get rid of the restriction errors, but they came back fairly soon. Replacing the clogged vent on the rooftop seems to have been the best fix thus far. But the other steps I tried did each help to some extent.