Paslode Framer Problems

[screamer]

Got a 350, was working ok, was sitting on a dwang and it got knocked over, battery come out and the casing battery casing end came off but went back together again.
Fearing the worst, put it all back together again and the gun started working, used it for about 15 minutes more and it ran out of nails, reloaded and wouldn't fire, fan wouldn't come on but the battery light was on.
Got home, changed the gas & charged the batteries (also tried with new batteries), also cleaned the piston/chamber and slightly oiled it but now no battery light isn't coming on.

Any ideas what to try next?

 

[foxhole]

Check hinge on gas , had problems with one when hinge pin shifted and prevents cartridge from being secured correctly.

 

[screamer]

Thanks for the reply

Looked online for a more in-depth strip down video, so stripped down the handle section this morning, one of the battery connection terminals was pushed back so wasn't touching the battery connections

on bending it forward my lucky stars has held out again and the dam thing broke off, so new circuit board required! (£40 approx) so hopefully this sorts it, if not, a new nailer will be bought