Question about Aquacontroller Jr.'s

[PrivateJoker64]

Hi,
I asked this question in Neptune's forum but got no answer.
I have an Aquacontroller Jr. on my 65 that has been working great since I got it months ago. I recently set up a 90 and got another Jr. to use on it.
The one on the 65 is using the "A's" and I have the new one using the "C's" on the modules. The problem is that on the new one, the lights and pumps will sporadically kick off and on for no apparent reason. Sometimes they stay off just a second, sometimes several minutes. I haven't noticed problems with the 65, but to be honest, I haven't paid it that much attention either.
Is it possible that the two Jr.'s are interfering with one another? If so, how do I correct it?
Thanks.

[PrivateJoker64]

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