I have a Eheim heater - actually two of them. I set them to 78, but the tank temperature seems to go above that. I do have the LED light on and the lid closed. But weird thing is, the termperature says 82, and while the heater is set to 78, the light is on. So I tried another heater, and it seems to be doing the same thing... I am thinking about trying another thermometer to measure the temperature, but I doubt that the reading is wrong... why is my heater on?
Tank Temperature Keeps Going Up
- Thread starter droidus
- Start date
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Scotty Buttons
Valuable Member
I would check your thermometer. Also if you have a glass lid they hold in heat. Are your heaters in the tank? Or in a sump?
muzikalmatt
Valuable Member
Have you calibrated your Eheim heater? Mine was off by several degrees when I first set it up.
Mine is out in the display tank. I have a 32 G biocube.
Yes, it was calibrated.
I've now set it to 76, and the temp. is 79.2 and the light is still on. I took a reading from a second thermometer, and it confirms the first is accurate.
Yes, it was calibrated.
I've now set it to 76, and the temp. is 79.2 and the light is still on. I took a reading from a second thermometer, and it confirms the first is accurate.
mike550
Valuable Member
Probably stating the obvious, but could your heater have failed in the "on" position?
If it's not the heater, and the thermometer is reading correctly, then it has to be another source for heat.
If it's not the heater, and the thermometer is reading correctly, then it has to be another source for heat.
sbdiver
Community Member
use a fan, works great
Both of them though? I wonder if mine is maxing out at 82 degrees.... Right now, I keep turning down the temp on the heater to see if it still stays on.
