Puffed lipo by shorting?

[ReV:-O]

i dont think my hyperion duo charger is working right. the balancer works fine on the right hand side, but the left one doesnt work at all. i think its something to do with inside the charger, because i've swapped the taps and wires around and the left side still reads nothing.

o yeah and when i was looking at the voltages of the battery (3s), it was like 3.81, 3.81, 3.79. is this good? i decided to balance it anyway, so i hit balance and the fans came on immediately. it balanced it for about 20 seconds, then finished. the voltages for each cell was the same as before. does this sound right? how long should it normally take to balance?

cheers guys