thread SWB2-012 Power adapter for Square terminal goes dead. Have to unplug and wait 10 minutes in Payments Troubleshooting

SWB2-012 Power adapter for Square terminal goes dead. Have to unplug and wait 10 minutes

Ghilliesuitscom — Sat, 20 Sep 2025 09:52:54 GMT

Brand new square terminal with the SWB2-01 switching power adapter. I am using this terminal at a show. First 4 days worked good. 5th day, the power adapter went dead in the middle of the day. I unplugged it from the outlet, and had to wait 10 minutes, then it worked. Is this common? Will this continue to happen? or is it a bad adapter? Did it over heat, and have an internal reset? I just ordered another for $99 as a spare in case this happens again. very disappointed since the terminal cost $800, and I used it for 4 days.

Re: SWB2-012 Power adapter for Square terminal goes dead. Have to unplug and wait 10 minutes

Donnie-M — Thu, 09 Feb 2023 12:24:56 GMT

@Ghilliesuitscom I definitely do not think this is normal and sounds like a wiring short that is causing an overheat or thermal overload protection to kick in. Now, that said, the terminal is just a USB-C adapter and is only 29.00. I think you are referring to the Square Register and the replacement kit for it.

Square is really good about hardware and the warranty. I would try the new power adapter and if it works with no problems, pack up the old one and do a warranty claim here:

https://squareup.com/shop/hardware/us/en/return