« on: April 02, 2015, 07:26:36 AM »
Thanks for the feedback. I had it set up to have a fermwrap heat pad go on when it reaches 67 degrees, and the freezer to turn on when it hits 69 degrees with the probe inside a thermowell.
He is using a thermowell, so he's measuring beer temp, not ambient air temp.
A 1 degree differential should be fine. i have an similar setup (chest freezer, thermowell, dual stage controller, fermwrap wrapped around a carboy) with a 1 degree differential, and I've gotten 10 years of brewing out of my freezer so far.
I think your last freezer was just a lemon. Or maybe my freezer is some sort of prodigy? But 10 months for a brand-new freezer seems really poor.
Maybe your freezer is in a bad spot. Is it crammed into a tight space, or a really dusty location? The compressor motor does need reasonable ventilation.