Tripac evolution troubleshooting

Trying to see if anyone ran into same problem. Apu is running fine and output from alt is 14.1 runs for about an hr then shut off and throws alt light and I have to go outside to reset switch at box next to engine to get another hr. Otherwise just turning on and off at hmi just lets it run for about 5 mins. Alternator was just changed about 3 months ago. Any positive input would be appreciated.

 

Everything is working when it is but it shuts off after an hour. Volts were reading 14.1 yesterday now reading 13.6 tops so i guess i might be changing an alternator again gonna keep an eye ball and check batts for a bad 1 just incase but alt just was replace a few months ago so it should still be under warranty hopefully

 

Also forgot to mention checked control box fuses the only 1 thats getting and power is the ground fuse for some odd reason