WalmartI got what I thought was a Tetra HT10 Heater from Walmart and it would light on then never turn on again unless I plug it back in. Then it repeats again, I look at the packaging and noticed it was different from my other Tetra HT10 Heater that I got from a reputable petstore and works fine. I returned that heater to Walmart and repurchased the same heater from the petstore and it also works fine. Where did you get yours from?
Reputable packaging: http://feeds2.yourstorewizards.com/1298/images/250x1000/submrsblhtr50.jpg
Yeah that's what I don't know. A legitimate Tetra HT10 Heater will always have the light indicating that it's on and red will be when it's heating up and green is when it reaches the proper temperature.I think its working its at 76 degrees is that why the light might be off?