Hello Again,
So after my last post I managed to get the printer to work for a day or two. Then the prints started to fail every time. The prints would come away from the supports and drop into the resin tank. I got really good at cleaning out the tank. Empty the remaining resin into a spare bottle. Clean the tank with IOS. Clean the screen with IOS. Relevel the build plate with a piece of A4 paper cut to size. Must have done it 7 times at least. Finally in frustration I left it sit for 2 weeks.
Then after two weeks I had another look at it. Still doing the same thing. Failing on every print. Which is weird as the supports print normally and are still attached to the build plate. Its the print itself hat fails. So went to do some You Tube research. Watched a couple of videos on replacing the FEP. OK, so maybe this is the cause of the fault. Replaced the FEP with a spare supplied in the box. One of the video's mentioned putting a sponge under the FEP with installing the new one. OK did that. Tried more prints. fail, fail, fail. Each time going through the whole cleaning process & relevelling the Build plate emptying the remaining resin into a spare ( now half full ) bottle. Cleaning the tank with ISO. Watched some more videos on You Tube. Another person mentioned that when replacing the FEP that they put a bottle cap under the FEP when replacing it as it needs to be loose for the print to detach the last created layer when it risers. OK so maybe its too tight? Replaced the FEP again. This time with some looseness built in. Fail, fail, fail. Every print still failing. 
Did more research. After one of the fails I used the Tank Clean option. Did not work very well. Not the same result as in the video's. It was only like half the screen width that was done.
Still had to empty the resin, & cleanout the tank as done many times before.Tried the demo screen test and can see that half of the Elegoo name is cut off.
Trying to attach a photo but the Forum only wants http ones.
Wondering if I can factory reset the Printer? No menu option for that.
So I have put the failures down to a problem with the UV lights not working. Printer is not every two months old and has caused nothing but frustration.
(02-25-2022, 02:41 AM)billtodd Wrote: Hi Carl,Thanks for the reply Billtodd.
Apologies if this is obvious but , are you using the supplied spacer card between the build plate and lcd?
Some people prefer to set the plate level using the FEP only with tank in place (I'm not a fan of this)
Once the plate is set it is usually OK until something fails to print and shifts it slightly .
If none of the above apply , then have a search of the forum for instructions how to ZERO the Z axis and reset the HOME position.
Bill
I didnt get a spacer card. The manual states to use a piece of A4 paper. Have to cut it down to fit between the two Tank Screw towers. But thats all good. Think I am getting very good at levelling the Build Plate now. Have done it heaps of times.