Salinity probe suddenly started reading ~1.0

[mdowney]

Everything was working fine then it suddenly plummeted. No change to the tank. Manual test has salinity at 35 ppm. I removed the probe and cleaned it. It didn’t have any visible build-up. Still reads around 1.2. Any thoughts?

 

[blaxsun]

The last time my salinity probe went haywire I was able to fix it by:
* Disabling the probe
* Unplugging from the Apex
* Physically removed and rinsed the probe
* Rebooting the Apex
* Plugging the probe back in and re-enabling it
* Recalibrating the probe if the last step didn't work