can any give me an email address or web site address for aps or its maker

i was charging a battery the other day and my APS shat itself
the battery was an 4200 ib and i was charging at 6amps with a 25mv cut off using a 13v 15 amp powersupply
when it fininshed charging i couldnt change the preference to any thing and when i turned the bloody thing off and then back on the screen just had a line of white squares on the top line
i replaced the fuses to no avail

if any one can help it would be much apprieciated