How many of you guys are having problems with the the A3 chains?
In one of my A3s two of the chains are not working and in the other A3 on chain isn't working either.

How hot are you allowing them to run?
Man, you're the only one in here that understands what is going on with these units. 600 Frequency is jacked. These miners are OVERCLOCKED already. Now we got people that have no idea what they are doing, running these beasts on 120v circuits with inadequate PSU's and overclocking them. There is reports of meters showing 1400 watt pulls at the wall. Big amperage too. I'm running a couple and I know a bit about electricity. Not as much as you, but I know enough to know that these guys are playing with fire. Literally. If your breakers and wiring aren't extremely robust, you very may well end up with a tragic situation on your hands. These things are heating up my 12 gauge wire with new 20 amp 240 v breakers. If you do this with a bad or malfunctioning breaker, your breaker box is going up in flames. Maybe your house with it. Please think about what you are doing and do some serious research. These are COMMERCAIL miners that are running at Redline at the factory setting. This shit is NO JOKE! That's all I'll say. Good luck.
Nope many A3 came 1 or 2 hashboard dead.So these people including myself know about warranty condisions, I guess they don't over clock their A3s.Because it is broken form beginning .
Mine, 200V input and AWP++1600W normal clock.
So, PCB temp is 58C and 62C .
This is mostly BITMAIN issue. They send malfunctioning machine.
Not user's.
So it is simple, we just have to wait the BITMAIN do something.
Better make repair ticket. And leave messages with GUI system & miner config picture.
so