Antminer D3 defect?

Hi,
I made the mistake of buying a D3, but as it is still profitable after power costs I let it run. For a couple of days now it has stopped mining multiple times, it displayed 0MH/S in the dashboard. Thinking this may be a problem caused by the lousy internet connection I just kept rebooting. However, today it only shows one ASIC in the dashboard, even after rebooting

https://imgur.com/a/VsmpD

Does this mean the miner is defect?

If so, should I even bother sending it back or just write off the money? IIRC bitmain does not even do refunds, they only change the miner, so it would probably not be worth the hassle of sending it back, waiting weeks over weeks for a mere dollar a day...

Jan 9 17:14:42 (none) local0.warn cgminer[361]: check_asic_reg: Chain0 has 0 ASICs
Jan 9 17:14:42 (none) local0.warn cgminer[361]: check_asic_reg: Chain1 has 54 ASICs
Jan 9 17:14:42 (none) local0.warn cgminer[361]: check_asic_reg: Chain2 has 60 ASICs