So on random occasions I have had my circuit breaker pop and kill my print. This last time when I turned the circuit breaker back on, the printer started banging on the end stop. It ran for 3 hours before popping the circuit. I have ran other prints for 12 plus hours with no issue. And as for load, it really was a light load on the house, kids, were working, no cooking /baking, no heat or AC running.

here is my setup
makerfarm 10" , heated bed, on the relay, hegagon hotend.
Brand new house. - barely a year old. 20 Amp CB controls the dining room (where the printer is) and part of the living room.
I have this power supply.
http://www.amazon.com/gp/product/B00...ilpage_o03_s00


Just looking for suggestions on troubleshooting, thoughts on what I could/should do different.