just powered up my router after a few months and i am getting an overvoltage alarm on one of the three drives. I have checked the wiring and all seems secure and un broken. The voltage measures as 73v dc. i have spoken to Gary at zapp automation and he said it could be broken or damp. I have taken the cover off and none of the components seem blown. Does anyone repair these drivers, or can anyone suggest what to test on them? i have taken it inside to warm it up just incase its a damp problem. Thanks all