Repair drywall to hold a smaller radiator

[TeeeBeee]

I have a radiator in one of the guest rooms that was a bit loose and I tried to fix it with wall fix (it has worked before). The radiator is about 180x20 cm and the other 3 screws are fine and it's a gypsum wall. The fourth screw (an upper one) jumps in and out of the hole and won't stay screwed in. Help, what do I do? I cannot change the screws as there is no space.

 

[Avemo]

Is it a screw that's just in the drywall? Or is there something behind it? If it's just a regular screw in drywall, you might be able to replace it with a molly bolt. It will be much stronger.

 

[TeeeBeee]

There is some form of Molly that was there when I bought the house, or at least something to screw in
The gypsum board looks crumbled, when I looked earlier.
Sorry, should have been more clear, not so used to this.

 

[Avemo]

Do you have a picture of how it looks? If the plaster is torn around the molly plug, it gets a bit trickier. It's possible to saw out a piece of plaster and splice in with new material and a piece of a board on the back. Then you need to fill and paint or wallpaper over it. If you have access to the right color or wallpaper, you can make it look nice.

 

[TeeeBeee]

Must hold for the element too.

 

[Avemo]

That's why you should have a piece of skiva on the back. Done correctly, it becomes stronger than the original. If you upload a picture, maybe more ideas can come up.