Anyone out there who could help me? I purchased this from some guy who assured me it was working. I have replaced the faulty batteries but it is still now working. When everything is plugged in the fans run but only the "bypass" light comes on- nothing else happens, the batteries don't seem to charge and there is no output.
There is a relay which operates when the batteries are plugged in but nothing else.
Can anyone help?

That's the manual for it if you haven't got it, it does say it has two bypass switches at the back of it.


http://powerquality.eaton.com/Produ...e=&menu=&cx=101&x=11&y=1

Thanks, I've downloaded the biggest on. I have looked for switches before but not found any! This should help.
Thanks

I am still stuck! I found the switch but ti is in the correct position, so that's not the problem. Still need help. Please

I know, it's a 48v battery, have you linked the batteries correctly are the batteries holding charge, if you charge them are the battery voltages way over 12v, as 12v is flatare the batteries new, I don't know the unit but I will download the manual and have a read.

Thanks. I recharged all the batteries and all were over 12v when I installed them.
Any advice you can give will be appreciated. I cannot believe there is a lot wrong but it is a very clever thing!