Friday, Feb 22, 2019 at 08:34
Well, i have just completed the same insulation mod to my 15 litre Engel (cream body/Olive lid) so decided to wire in a couple of 24 VDC computer fans.
I thought everything looked ok until i ran the fridge for a while, and after about 15 minutes running, could smell like something electrical was burning. I then felt the center area of the fans and they were very hot, and hotter than i would expect, so i shut the fridge down, and disconnected the
bridge rectifier.
I am thinking maybe the rectifier is wired wrong, and after some research online am further confused.
The confusion is all about the AC input to the rectifier. Input to rectifier has 2 ports and i gather one is for positive and the other is for neutral.
Here is where i am confused. The Engel fridge only has one wire (positive) feeding to the compressor and an earth exiting the compressor. There is no Neutral......
Having said that, i have used the compressor feed as my positive into the rectifier, and the other AC port on the rectifier, have wired it to earth.
I have tested the DC output from the rectifier and am reading 25VDC, so thinking all is ok, wired 2x 24VDC fans , but then am finding the fans are over heating...
What have i done wrong........ ??
Its all starting to get too hard and am now thinking about aborting the whole idea of running fans
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