I just purchased a Jr. with a DC8 and set it up two days ago on my son's 90 with the default program to get it started. It does not appear to be working. The heater is not keeping the temp at 78 and the lights are not going on-off per the program. Is there any way of checking the DC8 to see if it is functioning? The Jr. looks to be working as far as reading the tank temp., do not have a PH probe yet so it is reading below 5. The instructions are really lacking. The green light on the DC8 is on. :?