Finlay
Triarius
How long does it take for one of these to cool down? I picked up a 43qt model off Craigslist and was functioning fine in his garage on AC power so I thought I would be good to go. Finally got it wired into the truck and it's been on all day and the temp is only down to 65 and it doesn't seem to be getting any colder. Fast Freeze does nothing either. Ambient outside air temps have been mid 80's and now in the 70's, if it can only cool to 65 there is something wrong, pretty disappointing.
My 63qt went from 90 degrees to 0F in a few hours.
Try it on AC power. If it works fine there, then something is wrong with the voltage regulator. It's a pretty easy fix - the parts just swap out.