Jurrian Hering Posted February 6 Share Posted February 6 In the last few days I’ve been having a unique problem with an ACO 100W heater I have. It’s been on a 40B for about three weeks set at 74 degrees. And for some reason recently when the heating element is on it makes a sizzling noise. When I unplug or turn the temp down to make the heating element turn off the sound goes away. The tank prior to that had a 50W ACO heater in it that never had that issue. (I upgraded in preparation to crank the temp to the 80s for some rams.) Any thoughts? Here’s a link to a video with the sound. Link to comment Share on other sites More sharing options...
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