I just has the A3 error happened to me earlier today. After fully activating the machine, I put it on standby mode without fully heating the machine to the brew head temperature setting. The bluetooth sign kept on blinking from the time I turned it on and to the time I put it on standby. I thought the wifi sign will eventually disappear. Well, an hour later or so, the A3 error appeared and the wifi sign was still blinking. I turned off the machine and restarted it back, allowed the machine to reach the brew head temperature setting before I put it on standby mode. Well, the A3 has not reappeared. I think, the A3 code appeared because the machine was put on stand by without allowing to fully heat it. Kind of annoying because that means you have to go through the entire heating cycle first before putting it on standby mode.
The steam definitely has a lot of power. It has more steam energy than my double boiler (110V, 20amps) Dream T La Spaz. No complains on this department, other than the Easy Cream wand is not working fully. The steam should turn off when the final temperature of the milk is reached.
Will surely post questions and learnings on this machine. I can't wait to plumb in this unit. Waiting for the filter cartridge to arrive.
I have never had an issue turning in the machine and putting it into standby mode before it reached temperature. Maybe try it again and see if the error comes up.
I just read how to program easy cream.
Push and hold button a + c (left + right) to enter setup,
push center button to enter dS menue ,
now push steam lever to enter easy cream program,
Use A and C buttons to change temp
Once temperature is set push Center B button to confirm