Help needed!!
O.k fuse F4 on the Aux. drive board (50 vdc coil) was blowing on start up, I isolated the problem to two of the three drop target coils 3A and 4A. Fuse will hold if I have the two coils isolated. On start up with one or both of the coils in the circuit the relay on the Aux. drive board "chatters" along with arcing between the contacts before blowing the F4 fuse.
I have checked the coils resistance and both are good, checked coil diodes on Aux. drive board those are good. Checked the relay its not shorted or welded together.
Can someone point me in the right direction?
O.k fuse F4 on the Aux. drive board (50 vdc coil) was blowing on start up, I isolated the problem to two of the three drop target coils 3A and 4A. Fuse will hold if I have the two coils isolated. On start up with one or both of the coils in the circuit the relay on the Aux. drive board "chatters" along with arcing between the contacts before blowing the F4 fuse.
I have checked the coils resistance and both are good, checked coil diodes on Aux. drive board those are good. Checked the relay its not shorted or welded together.
Can someone point me in the right direction?
