Johnson Temp controller differences - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Johnson Temp controller differences

Thread Tools
Old 12-04-2012, 09:02 PM   #1
Dec 2009
Columbus, Ohio
Posts: 320
Liked 16 Times on 14 Posts

I was hoping to find out if anyone knows the differences between the different Johnson A419 controllers? I have seen blue ones, grey ones, and different part numbers for different grey ones. Are the differences a wash or do they matter?
Keg #1: Oatmeal Stout

Fermenter #1: Scottish 80/-
Fermenter #2: BierMuncher's Centennial Blonde

Reply With Quote
Old 12-04-2012, 09:36 PM   #2
beaksnbeer's Avatar
May 2011
New Port Richey, Florida
Posts: 2,845
Liked 507 Times on 335 Posts

Some of the A419 controllers have the temp probe fixed to the bottom of the controller others don't provide a temp probe and are digital. Grey I believe are analog. I may stand corrected but gives you a start.
Home of the 12 Tap keezer

Reply With Quote
Old 12-05-2012, 05:49 PM   #3
Dec 2011
Fallbrook, CA
Posts: 93
Liked 7 Times on 7 Posts

Blue are pre-wired, plug n' play. The gray ones are not wired. Different part numbers equal differing voltages. Both are digital. The ones with the copper probe are analog. Here's more info than you probably need.

Reply With Quote
Old 12-06-2012, 06:13 PM   #4
Sep 2011
Forest, VA
Posts: 5
Liked 1 Times on 1 Posts

If you're looking for a temp controller, you might consider those that control two devices - your freezer (or refrigerator) and heater. Here are a couple of url's for such products from Amazon. I use the Control Products TC-9102D-HV to control my chest freezer and the heating element I put in there with my fermenting beer. I find this device keeps my product at +/- 1 deg. F. At $60, the price is decent. Have also heard good things about the STC-1000 which sells for less than half that and is probably easier to operate.

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Johnson A19 Temp Controller jww9618 For Sale 5 01-18-2012 03:19 PM
Anyone need a Johnson temp controller? thorsonj Equipment/Sanitation 10 10-14-2011 10:47 PM
Johnson Temp Controller shibbypwn Equipment/Sanitation 15 06-09-2011 05:39 AM
Johnson temp controller mfraier Beginners Beer Brewing Forum 34 01-28-2011 11:28 PM
Johnson a19 temp controller sauerj67 Kegerators & Keezers 13 12-08-2010 01:10 AM

Forum Jump