First this is not an Apex slam! I was out camping got an alarm from my Apex wich first alarm was Ph is reading 2.3??? No problem need to replace the probe when I get back. Lets keep going honey,lets snorkel this lake today I can fix that later. Then I get a second alarm saying my tank is now an ice cube and ready for some ice tea since it is at 16 F???? And the Ph is still reading in the 2's and guess what,both heaters are running full blast so trip is over !! Need to pack up and haul but home! I get on my phone to turn the heaters off and when I do the thing rests itself and temp is now 79 and Ph is 8.3 as it should be. Guess we're back on. This morning the wife says go home and check my tank please. Womans intuition is always right. As soon as I left the site and got phone service the alarms we're going nuts. Thank GOD I believe in over kill and that big fat chiller worked like it did! Both heaters have been running since 1:30 am. I unplugged the complete apex and the DC8's and rebooted it. It seams to running ok now. But still put finnex controllers on the heaters for fail safe. ANYONE ever have this happen ?? I am confused by this but would like to solve it so any input would be most appreciated . And yes I have a new found love for my power sucking chiller which I will never unplug like I was debating. That beast saved everything in the tank! It just paid for itself! Get lucky sometimes!