# smartctl /dev/disk/by-id/ata-Hitachi_HTS727575A9E364J3340084K1RA3A -a |grep Temp 190 Airflow_Temperature_Cel 0x0022 058 056 045 Old_age Always - 42 (Min/Max 26/43)
Upstream: https://github.com/guzu/hddtemp/issues/5
Please run # hddtemp --debug /dev/disk/by-id/ata-Hitachi_HTS727575A9E364J3340084K1RA3A and report the result.