Jurrian Hering Posted February 6, 2023 Share Posted February 6, 2023 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...
DaveO Posted February 6, 2023 Share Posted February 6, 2023 I would mount the heater low in the water column and make sure there is no air trapped inside of the housing. 1 Link to comment Share on other sites More sharing options...
nabokovfan87 Posted February 6, 2023 Share Posted February 6, 2023 Yeah, this is similar to what mine is doing. Thread here. I thought at first it was the coolant in the minifridge. 1 Link to comment Share on other sites More sharing options...
flyingcow Posted February 6, 2023 Share Posted February 6, 2023 Mine did that for a while then just stopped when I moved it out of the 10 and into the 20L. I think that says something for it possibly being trapped air. 1 Link to comment Share on other sites More sharing options...
Gannon Posted February 6, 2023 Share Posted February 6, 2023 Guess I need to move my AC heater away from my sponge filter when I get home haha 1 Link to comment Share on other sites More sharing options...
Jurrian Hering Posted February 6, 2023 Author Share Posted February 6, 2023 On 2/5/2023 at 11:05 PM, DaveO said: I would mount the heater low in the water column and make sure there is no air trapped inside of the housing. I moved it down and cleared all the air in it and there were a fair amount of bubbles in it. However about 15 min later it was doing it again and filled with air. Very strange. Link to comment Share on other sites More sharing options...
nabokovfan87 Posted February 6, 2023 Share Posted February 6, 2023 Yeah. I just posted a video of mine in the clicking thread. I am going to try to keep track and note if the heater is actively on when it clicks, etc. After each WC I am going to disturb and release all the bubbles internally if there are any that get trapped. I didn't see any on mine when I did that. Hopefully it's a break-in issue and goes away. Very weird. 1 Link to comment Share on other sites More sharing options...
DaveO Posted February 7, 2023 Share Posted February 7, 2023 On 2/6/2023 at 3:35 PM, Jurrian Hering said: I moved it down and cleared all the air in it and there were a fair amount of bubbles in it. However about 15 min later it was doing it again and filled with air. Very strange. That heater traps a lot of air. Just try clearing it some more and make sure no bubbles are blowing into it from a filter or something. 1 Link to comment Share on other sites More sharing options...
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