I'm troubleshooting my charger and I started with no buzz,no charging. I found the 50 amp fuse blown and bypasssed the black board I now have a buzz. I don't know how to test the diodes for one way voltage. Can anyone help?
I went to lesters website and followed the instructions to test a diode and found it very helpful and easy using a volt/ohm meter. Yes I have two blown Diodes. They said the most common reason other than a pwr surge is the wiring of the DC cord or recepticle reversed. The receptical was replaced and not really sure how it was origionally wired. They said that the DC power cord is wired with the white lead going to the diode and black lead wired to the transformer of the charger. I noticed that the white lead comming out of the cord was wired to the positive lug of the plug end. Now I'm confused how the DC receptical is to be wired to the batteries. I'm assuming that the receptical is wired with the white lead going to the positive terminal of the battery group and the black lead going to the negative terminal of the battery group. Its a bit tricky to figure out. Can anyone help explain it better. I'm leary of replacing my parts and having the same results.