Jennys planted tank

Thanks! I’m very surprised this happened already. The heater is only a month old and as it’s warm in the house hasn’t even been kicking on that often. Oh well, that’s why we have backup heaters! I’m just grateful my animals weren’t hurt.

I noticed a high pitched whistling coming from my tank this morning. I figured it was a leak in an air hose but it turns out it was my heater. I immediately unplugged it and threw in my spare. Has anybody had this happen? I assume it is broken and will need to be replaced but I would like to understand what the issue is.