Son of a Fermentation Chiller variant

[mmadia]

Aside from a brief hiatus from brewing during the winter, my chiller has been working well.
That is until recently when the peltier junction upped and died.
Even after seeing the unit run continuously for a few days, the light bulb only clicked on when I realized the hot-side was as cold as the cold side.
Luckily, a spare peltier junction was nearby.
So aside from this minor part failure, I've been extremely pleased with the chiller.