They have a great team, but make sure to get green light from them before doing the check.
Yes they do, had/have same problem on one of S5, also had same attitude that i can tolerate half board hashing (butt hurted with BFL, bitch slapped with KNC) but when i found out that service center is in my country (not to mention that it is in my town) i was jumping to the ceiling.
One week after contacting support beautiful cheerful mythical creature named
Bitmain_D appeared on my doorstep with new board and big smile, we swapped boards in matter of minutes and rest of evening spent singing ode to Bitmain.
Best mining experience ever, good job Bitmain (try to keep next gen cooler)
dec
They really do have a great support team. Glad to hear it worked out so well for you. I know they have a US and China support team.
You can even call and talk to a real person that blew me away when I had a bad S3 controller board (powered off during firmware update and bricked). The were amazing service and very quick on getting new part to me. It was out of warranty so I paid for new one. I'm honestly surprised we don't see more "happy stories" with their support.