Ive had the helios controller with 2 BRS 300W titanium heaters running for a month now, and this morning is the second time I've seen the temps down. In the low 70s. Display showed the low temp E4 error on the screen. I power cycled to reset, and it showed power to both heaters but in the 30 minutes I had to check the temperature didn't go up. Is this a problem with the helios? Or with the heaters themselves? For an emergency back up i moved an old finnex titanium heater and controller over to get the temps back up in the display for now. I have my wife watching tank temps as i had to leave for work.
