Central locking

[paul whalley]

Hello it's been awhile
Problem is on my peugeot boxer 54 reg it all started around 2 months ago, I locked the van up using the fob then came back to it and had to use the key then I noticed that the electric windows weren't working so I went through the fuse boxes and foun a fuse popped changed it and been fine till Monday, same happend again so changed the fuse again and as soon as locked it went again,so I replaced the 20a fuse with a 30a that blew. I had a bloke come and have a look at it today he thought that it was the motor that pops the passengers door lock so we disconnect it and was fine windows were working fob was working on drivers door ,locked unlocked numerous times all was fine till just when I locked it then come out and unlocked to go out and the fuse went again.
Any one got any ideas?
I can live without the Central locking but would prefer it to work but I need the windows to work it like a greenhouse in there