hello all i have been having issue with a my S2 miner it has been working fine up until now but yesterday it just stopped hashing

the problem is now the miner is refusing to hash the hash rate is always zero now  nothing has been change not  setting or updates there was no beeping or any warning,

i have  rebooted but to luck on the miner status page now there is nothing displayed no fan speed or anything,

the unit is still powering up and can be accessed via the GUI fine all the fans are working normally and all the boards are all lighting up OK so i am at a bit of a loss for what could be wrong can anyone provide any help i would be super grateful.