Keg Fridge Cold in Summer Hot in Winter - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Keg Fridge Cold in Summer Hot in Winter
Sign-up To NEW HBT Article Newsletter - Brewing Articles Direct To You!

Thread Tools
Old 11-20-2008, 02:54 AM   #1
Feedback Score: 0 reviews
Join Date: Mar 2008
Posts: 238
Default Keg Fridge Cold in Summer Hot in Winter

Ok, I searched on this, but I couldn't find anything. Here are the details.

I have a 7ish cubic foot freezer with a Johnson temp controller set at 40. The probe is mounted on the wood that is a part of the collar. The collar is not insulated other than the wood itself. This summer when it was 90 my thermo I have in the freezer read like 38 and I had some frozen beer. The thermo and the probe for the controller where high in the freezer so I figured hot air rises and maybe it is cold at the bottom and not so much at the top. So I installed a fan to circulate the air and it seemed to get better. Well now it is 35 or so at night and mid 60's during the day. Now my thermostat in the fridge is showing 48 and the beer tastes hotter. I also took the probe off its mount and left it in the middle of the freezer and still 48. The only other thing I can think of is that the majority of the probes wire it outside the freezer. If you know the Johnson controller it is this weird stiff copper wire. The next step is to get that in the freezer, but that is a wild guess. Sorry this is so long. Any ideas.


Primary 1 - Black Widow Dry Stout
Primary 2 - Black Widow Dry Stout
Secondary 1 - Apfelwein
Secondary 2 - Apfelwein
Keg 1 - Adverse Yaw House Pale Ale (Notty)
Keg 2 - Adverse Yaw House Pale Ale (S-05)
Keg 3 - NB #8
Keg 4 - Centennial Blonde
On Deck - Faversham Best Bitter (Orig Recipe)
evandam is offline
Reply With Quote
Old 11-20-2008, 02:01 PM   #2
Feedback Score: 0 reviews
Join Date: May 2007
Location: Wentzville, Missouri
Posts: 1,231
Liked 4 Times on 4 Posts
Likes Given: 1


You mounted the controller "inside" the freezer? If thats the case thats probley why its not staying steady.

PRIMARY - Irish Red
PRIMARY - Apple Bee Cider
PRIMARY - Dunkelweizen
PRIMARY - Orange Blossom Mead

"A man is but the product of his thoughts. What he thinks, he becomes." -- Mahatma Gandhi
Aleforge is offline
Reply With Quote
Old 11-20-2008, 02:11 PM   #3
Feedback Score: 0 reviews
Join Date: Oct 2008
Posts: 406
Liked 1 Times on 1 Posts


Is your freezer actually outside? I am not sure what a temp controller would do if the air around it is colder than the air in the freezer.

It can not hurt to get as much of that wire in the freezer.

After that double check the thermostat on the freezer to make sure it is not turn on low or anything.

If that does not work try just plugging the freezer in like normal with out the Johnson temp controller. This is to test the freezer. It is possible that the freezer is just shot.

I have never owned one of those temp controllers so take that into account when following my advise.

I probably will not be around much anymore. I had to close my restaurant and get a real job so i do not have the time to hang out online all day.

Check out my videos on my profile or at: Just voted the worst show on the internet.
madewithchicken is offline
Reply With Quote
Old 11-20-2008, 02:46 PM   #4
Feedback Score: 0 reviews
Join Date: Sep 2008
Location: Lakeland TN
Posts: 3,709
Liked 47 Times on 41 Posts


Put the probe in a container of water at the bottom of your keezer. Or, tape it to the bottom side of a keg, preferably one in the middle of the keezer.

The temperature at the bottom of the kegs is what matters, you serve from the bottom.
Cpt_Kirks is offline
Reply With Quote
Old 11-20-2008, 05:22 PM   #5
Senior Member
Feedback Score: 0 reviews
Join Date: Dec 2006
Location: Turner, Oregon, Oregon most of the time now
Posts: 2,305
Liked 53 Times on 47 Posts


The funny copper wire on the johnson controler is a small copper tube with the sensing gas inside. If you have more than a couple inches exposed outside it will respond to what the tube see's instead of the probe.

kladue is offline
Reply With Quote

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fridge TOO cold underwaterdan Bottling/Kegging 8 12-31-2008 03:59 PM
New fridge TOO cold? Pugilist Equipment/Sanitation 8 01-24-2008 06:51 PM
Cold keg box from a Fridge mattm3 Kegerators and Keezers 8 01-08-2008 02:01 AM
Keeping a full keg outside in winter to stay cold??? Chello Bottling/Kegging 7 12-04-2007 12:51 AM
summer brewing with no fridge? photogscott Equipment/Sanitation 3 04-20-2007 01:52 PM

Forum Jump