Ice Maker Removal - LG freezer

[FONT=Arial][SIZE=3][COLOR=blue]I have an LG fridge with top freezer, model GR-729RN[/COLOR][/SIZE][/FONT]

[FONT=Arial][SIZE=3][COLOR=blue]Lately, a sheet of ice has been building up on the floor of the freezer compartment - from the back towards the front - and needing removal every 5-10 days[/COLOR][/SIZE][/FONT]

[FONT=Arial][SIZE=3][COLOR=blue]I believe the problem must be a blocked water drain line; there is no sign of any water having reached the evaporation tray down at floor level for a long time. The defrost heaters can be heard to work quite regularly.[/COLOR][/SIZE][/FONT]

[FONT=Arial][SIZE=3][COLOR=blue]From what I have read here, I think I have to remove the back panel of the freezer compartment? First problem is to remove the ice-maker. With the front cover pulled off, I found and removed two screws holding it up to the roof, but was then unable to see how to proceed? No further attachments are obvious.[/COLOR][/SIZE][/FONT]

[FONT=Arial][SIZE=3][COLOR=#0000ff]Even if I had been able to remove the ice-maker, I don’t see any screws or other means of attachment for the back panel . . ?[/COLOR][/SIZE][/FONT]

[FONT=Arial][SIZE=3][COLOR=#0000ff]James[/COLOR][/SIZE][/FONT]

[FONT=Arial][SIZE=3][COLOR=blue].[/COLOR][/SIZE][/FONT]

Hello James,
I wonder if I could inconvenience you to recheck your model number. I can’t get it to pull up on any of our sites. Thank You.

[COLOR=darkred]I took that model No. from the “Owner’s manual” but no mistake - the data plate inside the 'fridge agrees: GR 729RN it is![/COLOR]
[COLOR=#8b0000]Any guidelines to removal would be helpfull[/COLOR]
[COLOR=#8b0000]Thx[/COLOR]
[COLOR=#8b0000]James[/COLOR]

Hello James,
After extensive research, we found that this is a Canadian model. Unfortunately, we have no information on these units and cannot provide assistance without the technical information. I suggest to check around and see if the service manual can be obtained locally. Let me know if there is any way I can further assist.