Im khaled im from Lebanon.
I have a problem with my furnace. I hope if some body help me.
I have i white line on middle of glass when glass out from furnace.
My furnace size 2440x3660
It is on middle on glass. Bottom side.
Im use many ideas to solve this problem. But no way. Im tired.
Rollers are the problem. Check if all the rollers are rotating well. Clean the rollers on regular basis.