Game hangs after adding Wear&Tear to existing save, no info in logs/scriptlogs.
The only thing I get is "ding" sound, similiar to one when you write something on chat.

Modlist: http://pastebin.com/3TCukffC
Log: http://pastebin.com/ME4L3QJB

Edit: I'm sure it's Wear&Tear because I separated my newly added mods when problems started after loading save(yes, I was adding bunch of mods today), and added them one by one. Wear&Tear made those problems.

When I added this mod to my base with several tousand affected entities I also had this hang. Factorio cannot output any messages because every building is registered in this mod in the same time frame. Hence there is no possible status update in between.

Just wait, maybe several minutes, and your game should run again.

How many assemblers, solar panels and miners are in your world?

Please let me know how this works out. I just installed your mods and have not been able to reproduce any game crash. It's possible there's a conflicting script already running in your old save file but very difficult for me to fix if I don't know which other mod is conflicting.