Well Salva, i suggest that you stop reading this NOW
I picked up the gun from the post office and had an initial look at it, pulling the back block and cocking rod backwards revealed something wrong straight away as i was only getting maybe 1cm of movement. I dropped the bolt and back block out and stripped the rex dialer, to find it in several pieces inside the gun. The valve still felt smooth so i just re-assembled the rex dialer and put it back in. The result was a smooth cocking action.
I cocked the gun and gassed it up, pulling the trigger fired a single shot but then the gun didn't re-cock? It attempted too but the cocking ram just seemed to jam as tho it was pressurising both sides of the ram simultaneously.
I thought maybe the solenoid gasket had blown or maybe the cocking ram piston seals perished but both were ok.
As Salva had stated that Belsales thought it was electrical i decided to switch the boards with a spare E1 that i had in kitbag, just to eliminate an electrical fault and to my suprise the gun fired and re-cocked?
I rattled off a few shots just to make sure and it ran smoothly, so i figured i'd switch back to the Zero-b to see if i could figure what had blown on the board?
This is the bit that stumped me as i'd not ungassed the gun as i switched boards back and when i got the Zero-b back in, the gun fired and recocked?
I retraced what i'd done and figured out the problem, the cocking solenoid plug and the sear plug were put in the wrong holes on the board.
I took it to work today and unloaded 3 hoppers thru it at 15bps and it ran faultlessly.
My nickname is Lucky because "i'm not" but on this occasion i appear to have come good, buying a cheap broken gun which turned out to need nothing more than a quick seeing too. 1 and a half hours...job done