I started my PB tonight to cook for a crowd and before it started to smoke, about 3 minutes after we started the grill, it shut off and gave the error code HEr. I grabbed my Manuel and there’s not that error code in the trouble shooting section. I called their support line about 4:15 and got a message that they close at 5. Both were pacific times. I pulled everything out. Removed the few smoldering pellets from pot and tried it again. Nothing happened. I unplugged it for 45 minutes and it finally ran for about half a second before the sane error code comes up. I can’t turn the power off unless I unplug it from power! It’s never plugged in unless I’m using the grill. Any tips or help would be greatly appreciated!