Airmar Dst810 bad temp data

[Nick J]

Has anyone else had issues with their Airmar Dst810 thru hull transducer? Mine is a little less than 2 years old and the water temp is now reading above 135 degrees F. I verified with the Airmar app that the raw data is wrong and not a NMEA 2000 issue. Is there a fix for this? I don't think the speed or depth is off, just the water temp.

 

[peaman]

Apparently, this is not uncommon. My DST810 is also about 2 years since installation and it also has crazy high readings. Speed and depth appear to be accurate. Monitoring temperature readings is not convenient in my system, so I don't know when it failed, but I saw the discrepancy mid- to late Summer this past year, after installation in April 2022. The Airmar Bluetooth app allows for some adjustment, but not nearly enough to correct the readings on mine which are similar to what you show in the image.