I need advice on an issue I have from time to time... I’ve seen this phenomenon like 2-3 times in the past weeks, without knowing what was wrong... and it’s new, because my temp was very stable for month/yrs....
For no reason, my temperature peak in the afternoon, without my heater being stuck on « on » position, of failing to go « off ». I’m pretty sure of this when I look at graphs, which show no « on » status from heater outlet, and no amp drawn from my eb8.... but still with tank temp rising on both temp probes! (See graph pictures)
Since the is no change in any other settings, I cannot blame the heat from the radions, they run the same program everyday.... All pumps are running properly without evidence of « isolated in time » disfunction... Room temperature is very stable... of course spring just got here but still cold outside and no « direct sun » shows in room until late afternoon....
Since it’s a titanium finnex 800w heater, I thought it might be « residual heat » from an overpowered heater, dissipating slowly, but again I don’t think so because on the graph, the temperature returns to baseline before rising again without « heating »....
Problems started weeks ago, as I woke up at 4am because of my apex sending alarm because my eb8 lost communication. The fallback setting for the heater was « OFF » because I had no redundant controler in case the outlet is stuck « ON » ( I know I should had one... just ordered one). The water temp was getting low, not reaching my low-temp alarm, but still a near-miss!
Didn’t know what was wrong, eb8 led was flashing... tried to update firmwares, unplugged the main unit, and change the finnex 800w position from a TRIAC outlet, to the 8th outlet, because I read it might be best to put these on a 10A outlet... Don’t know what change did correct the problem, but eb8 was now connected to apex and everything seemed to work just fine...
Until few day later, when I noticed unexplained rises of temperature, apparently not triggered but the heater itself... I tried « narrowing » the temperature range. The temperature was indeed more stable after that, but still have these temperature peak occurring from time to time and still can’t explain it...
My plan at first was to change the 800w finnex titanium heater and buy 2x 300w heaters with inner contrôlera to be set a bit higher than the apex setting... But I doubt the heater is responsible because no amperage peaks are seen on the eb8 while the temperature rises.... (see graphs)
So... any idea?
Probe disfunction?? (Then 2 probes would be failing together and coming back to normal together...)
Can my reeflo external return pump « overheat » during short periods??
On my 2 other eb8, there’s no amperage peak, that could show a piece of equipment that would draw too much power during those episodes...
Thanks for sharing your ideas...
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