Power supply problem

[captain harlock]

Hi, it has been a while.:M: I would like to have some help from you people. I'm using the futaba cdr5000 charger and that beast needs a power supply, however, the power supply that I've bought has been damaged because of exessive heat. I was charging a 12 cell pack at once and the charger can handle up to 36 cells at a time, but during the process the charger suddenly shutt down. I thought that the CHARGER itself was damaged, but when I connected it to a 10 cell pack the thing hooked up in no time, I then reconnected it to the power supply, but no use the thing simply doesn't want deliver any power. I noticed that when I connected a 12v cooling fan to the power supply after the incedent the thing was working quite well, but not with the CDR 5000. So what do you think? what shall I do? the power supply delivers 13.8 volts at 17 amps surge and 15 cont. BUT it has no cooling fan?!!