can be several things, test element with a multi meter make sure unit is unplugged first,if good check defrost timer by manually turning into defrost mode check to see if element comes on if it does replace timer,if still no good it may be the defrost termination timer which is a bit more complicated
Doesn't sound good but check the cooling coils to make sure they aren't covered in dust and lint. It is quite amazing how much lint collects on the coils in all home and should be vacuumed off regularly. Next try and access the fan and spin it by hand [power off!] and then plug in again. If it still doesn't spin the check that it is getting power and if so you nee a new fan.
I am think your problem is it is not coming on. If that is right my first thoughts do you have power to refrigerator. Check breaker or fuse in house electrical panel which powers the refrigerator outlet. Try turning the breaker off and back on . You might try unplugging the refrigerator and plug something else into the outlet to see if it will work if you do not have a volt meter. You said you changed the refrigerator fuse was it blown and could it have blown the new fuse.
If it has power but is not working there are a few you tube videos for help with several issues. I searched for( LG ice beam door cooling refrigerator freezer not working) and picked these two you can look for more.
https://www.youtube.com/watch?v=ThLYEwCs800https://www.youtube.com/watch?v=YNwcwOtCB70
Did your fridge come with a dummy or fake filter? If so put that in and see if it will dispense. It may be that the fridge software is preventing the ice maker and water dispenser from working until the filter is replaced. Some GE fridges actively prevent bypassing the filter.
If yours is the same as mine, the hood (what I believe you are calling the "flap") is not meant to open. It is there so you can see what's in the drawer, but it doesn't lift up, even with the trays above out of the way.
LG has rather finicky icemakers that are usually computerized. There are magnetic pickups that tend to not read right causing icemaker failure.If it will cycle but not fill then this is most likely the issue. Without knowing the model#, I can only guess but as long as you have proper temperatures then the icemaker will need to be replaced.
Hello
Since you did not make a complete thaw in the freezer?
Do this and then cleanly, let it dry inside, then turn it on, cause it can be an ice plug in the freezer coils