I bought 2. A 150w and a 200w. Could both be defective?! Set both dials to 79 degrees. Tank temp reached 83.5 and still neither heater shuts off. Only when I turned dials to the indicator showing 75 or less do they turn off. ***?
Anyone else using them have advise? Besides getting rid of them at this time that is :)
Anyone else using them have advise? Besides getting rid of them at this time that is :)
