Batteries not charging-both engine and coach

[Ed Gardels]

My batteries wont charge after I found them discharged.grand kids knocked
shorepower plug out. I pluged it back in and a couple of days later they are
still dead. I have the diagrams for the chargeing circuit. There are four bosch
relays in the circuit to allow the current to the buss and then to the battery
bay. One of the wires that goes to the coil of one of the relays goes to the
front elec panel.What else is neccesary to charge the batterys.relay or
whatever.I have been working on this for two weeks with no results.
Anyone have ideas or knowledge of this circuit please advise?
thanks in advance
Ed Gardels 89SP
Arlington Tx