Ok I have recently and repeatedly been having problems with a retrofit lighting kit. I have 2 icecap 660 ballasts powering 4 ea. bulbs. I recently switched to ATI from Geissman, because it was time to replace my bulbs. Prior to switching I had no problem with the bulbs. Probably a coincidence, but since switching I have had to replace 3 or 4 of the ATI bulbs always in the front set of 4. If I am not mistaken always in position 3 or 4 if I was counting front to back, with 1 being front and 8 being back. I just replaced a bulb earlier in the week 4 and it is already bad again.
What happens is the front 4 bulbs quit lighting. When I notice I rotate the timer to cycle the lights. When it comes time to turn the lights on the front 4 will light for a second then all 4 go out. I then shuffle the bulbs to determine which bulb is the cause. This time 4 again. On 1 occasion I have found 2 bulbs out. the rest of the time it has just been 1.
Anyone have any ideas??