I am awaiting new boiler installation, on sunday. Would be nice to have at least hot water. But i am stopping messing with it. Thanks everyone for help
Cheers
Artem
Did put aa screw trough heating pipe under floor frst flooe. Drained the syatem to get it fixed and when backbon straight awat 2ampbfuse is burning. The actual fart was not leaking
After draining central heating when i turn the boiler on the 2amp fuse on pcb burns. If i disconenct wires from this part the boiler coms. This part is screwd on pipe giong into pump
Cheers
Artem