My Apex thought the tank was running hot...when I tested against a thermometer the Apex was off by +8 degrees. I opted to re-calibrate probe and see if that resolves the discrepancy. Has anyone else ever had to re-calibrate a temp probe or should I err on side of caution and replace?
Had a few power outages recently, but uncertain in that is when the discrepancy started...anyone know of any known causes of temp probe wandering?