Master hub channel bad, anyone seen one like this?

[DavidB]

Master Channel Hub.
Hadn't checked my temps for few days and decided to yesterday to find no temp readings. Checked further back and found where it stopped. Took me a bit cause thought it was software, but it wasn't, Channel One went bad. So I moved everything to Channel Two and Three and they worked. So just had to tell my program to use Channel Two. Still look at the way it failed. Looks like it stopped, then tried to start,...... so doesn't look like something zapped it. The other channels are fine with the same connections.
View attachment 1629
I might buy another to replace it, but for now the other channels work just fine. Guessing should just caulk this up as a bizarre loss. Unless someone can come up with another reason and that it might affect my other channels or any I replace. I haven't moved or done anything that should have caused this, infact I have not touched anything for awhile until I found it not reading.

Another weird thing is that the furnace plenum (red) looks normal still while the other ones are starting to fail, there are two humidity sensors and 6 other DS18S20's and two humidity sensors on that same branch that were acting up and the whole aux branch on channel one acted up. Then the furnace wasn't reading correctly either. So it isn't like the branch wiring went bad. Like said, put them all on other channels and they are working fine now. Channel One is now dead though.

I didn't catch it for several days, so couldn't get a picture of the 3hr, 24hr or 48hr graphs.

 

[sda]

Did you try unplugging the power supply to fully reset the hub?

 

[DavidB]

Did you try unplugging the power supply to fully reset the hub?

Sup man. Yep, actually several times and the computer also. At first I thought maybe the computer app locked up or something.

 

[sda]

If you haven't already done so, verify that its actually the hub.
Unplug the cables from the ports and check it with "one wire viewer".
If it doesn't see all three DS2409s, its a hub problem.
If it does see the DS2409s, its down the line. Either a cabling or sensor problem.

The part you least suspect sometimes causes the problem.

 

[DavidB]

It's the hub, just don't know what caused it, probably just chip went bad.

Everything is in place, this isn't a new installation. All had to do was move the rj45's to the other channels and works, move them back to channel one and don't. Moving the rj45's doesn't move any of the sensors, everything is anchored down throughout the house. The hub rj45 female ends of channel one look fine also.

Tried digitemp and it doesn't see channel one either. Use Owfs and same results. Every sensor that was on channel one, is seen on channels two and three.

I'll just order another DS2409 when finally get around to finishing the electrical meter disk reader and get a one wire counter.