I have a i9+3S with IC40 and one of the original power packs (1 resistor) and Intelliflow VF. I have NEVER been able to keep communication for more than 45 days from the screenlogic to the panel. The shortest was 14 days, the most recent was 3 weeks (It's been 85 F +) last 3 weeks. This has repeated almost 5 years straight now.
I've been through:
5 new pulls/runs of 22-4 to the panel
8 protocol adapters
9 UOC boards
1 main motherboard
3 I-link adapters
Recently I had a rep come out and replace everything again except for the intelliflow pump, chlorine cell (new last year), and powerpack. This time we added the wireless connection kit.
It ran for 2 weeks, I added the I-link - and it ran for about 10 more days before I can't connect.
The obvious answer is to replace the last two pieces of equipment, but it hasn't happened yet. Pentair has helped which I'm thankful for, but I've replaced the screenlogic adapter twice and I-link twice. They aren't cheap and the problem never gets solved. I'm suspecting the power pack of being bad and killing the UOC repeatedly when it gets hot outside. Any help would be greatly appreciated.