I have recently dusted off an Apex Jr and put it on a Nuvo 20. I purchased new APEX temp and pH probe from BRS which arrived today. I did a hard reset via "Init Memory" and I updated the firmware to version 4.52-5A17. I set it up on apex fusion without a single hiccup. Outlets setup perfectly. My one and only issue is the the temp is reading 121F. The water is 77.8 according to 2 independent temp probes. I tried to calibrate but the probe will only get down to 106F before it recycles beginning at 136F. When I unplug the temp probe the APEX monitor reads 20F. I get the exact same temp readings if I plug it into the pH probe module. Thank you in advance for your time and consideration.
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