Allen, he doesn't have an IntelliTouch® or EasyTouch® Control System.
@oakwater, thanks for working through the steps, posting pics and your signature looks great! Here are some next steps...
OK, so now we know the IC is OK. Were you able to test how much life it has left? We'll come back to that in a later post, but for now it would be good to know what we're dealing with in terms of the remaining life of the IC.
As Allen guessed, you've lost the COM (Communication link) between the IC and IpH. We've seen instances here where this just happens, and we don't know way. I have an IC in my garage that works fine, but won't report to my Controller. Without the Control System, it's going to be difficult to determine which unit is at fault. I only know of two other, uh, unconventional ways to troubleshoot this, assuming you are
sure that all the pins in the two connectors are making contact. So lets beat that dead horse.
Those connectors have four pins, two for power and two for COM. We know the power pins are making a good connection, because the IC has power and functions. If the COM pins are not connecting well, then you'd get the symptoms you are getting. You said they look clean, so that's good. You can trying wiggling the connectors, both as they are screwing together, and after they are fully seated, GENTLY, as a way to maybe coerce them into making a better electrical connection. Try disconnecting them, then back together, several times. You'll be rubbing the pins into their receptacles multiple times, as a way of maybe abrading the surfaces that might have some corrosion on them. Or you could try some contact cleaner on them. Or, as a
last resort, you can
very slightly bend the pins,
and I mean very slightly, just give them a very slight angle, either toward the center, or away from the center. Then assemble the connection. This can sometimes force the pins up against the inside of their receptacles in such a way as to create a better connection. As I said, last resort, and very slightly, because you can break off a pin if you get to aggressive and then you'll be hosed. So those are my cable connection tips.
Did you inspect all the cables for chew marks?
By the way, I've been assuming you're out of warranty on these. If not, we can stop here and call Pentair and they'll replace one or both units.
Now if this were my $1200 (IC + IpH), and everything was out of warranty, I'd be tempted to start cutting wires and soldering things together as a nuclear troubleshooting option. But before we go down that path, let's check something else. How are you with electricity?
Shut off all the circuit breakers (you should be doing this each time you connect or disconnect any components to/from each other). Unscrew the three black screws on the face of the IpH. You may want to remove the IpH from the wall for this. Remove the IpH face plate and inspect the white COM connector. It's got four fat wires running to it, red, black, green and white. You're looking for any scorching. Like this:
Report back with what you find. I'll warn you though, this probably isn't it, but we're being thorough...
