Figured the search showed at least a year old on the topic.   Wanted to share that in last 3 months I have had 4 more ISY994 power supplies all die.    All had been running continually for 8+ years, all were in ranging envs of heat but all in dry env.

Last one was funny in that is browned out - ISY would periodically reboot every 3-12 hours for the last week.    After doing an unplug and replug it ran for 3 more hours then died completely.        Really kinda speaks to how well the ISY994 was build and its ability to be browned out on power then restarted multiple times with ZERO impact to long term run health.     Such a bummer that the new hardware really cannot tolerate power cycles !!

 

 

What's the voltage and current rating on the failed power supplies?

I agree. 

I have had a few myself.  From old ISY44i and ISY994i.

With one. The ISY994i was OK until I did a power cycle on it. Then all it did was start to reboot and the supply shut down and the cycle repeated. One nice thing was the ISY994i has a wide power input range, Mine where originally 5V 500ma and  5 volt 1 amp. Now I have 12V one amp.