Had an issue with on e of my heater fans. I had taken off and got up to pattern altitude. I then turned on the heater and a few seconds later the cockpit got a little smoky and I could definitely smell burning. After landing I did not find anything wrong with wiring. I did notice that I had one fan that was not running. I took the fan out and removed the blades and found that the smoke had been let out.
PXL_20230402_152938300.jpgPXL_20230402_152636197.jpg

This is one of two of the fans that came with the heater kit. Has anybody else had any issues with these? One thing I will note is that they are generic PC cooling fans and probably are designed for 12 volts and not much more. I know on my airplane, the electrical system gets up to around 13.8 volts. I've been trying to see if there are fans out there that would be able to work in this range.