I have multiple heaters on my system for redundancy using port 3 and port 7. I noticed one the of the heaters died a while back since it was never turning on (port 7).I purchased a new heater and had the port turned off to install the new heater. When i plugged in the heater i noticed that it turned on even though i had the port off. My first thought was a bad heater but how does a heater turn on if the power to the port was supposed to be off. I unplugged the heater and plugged in a small light for testing. No matter what i did the power to the port would never turn off. I noticed that i had a firmware upgrade available for the apex so i upgraded just to see if that would help. Didn't seem to help after the performing the upgrade. Any suggestions before contacting support?
AquaController Version 4.53_AB17
Dashboard Version 4.53_AB17
AquaController Version 4.53_AB17
Dashboard Version 4.53_AB17