Hi everyone. I'm hoping to find someone around here that has the same setup as listed in the title and pick their brain. I have a Johnson A419 controller, chest freezer and thermo-well for my fermentation chamber. I have the controller set to 1 degree difference and my temp @ 69. I'm experiencing problems with the freezer running for too long and once the desired temp is reached it shuts off but keeps cooling the beer.
Basically I'm experiencing temp swings of about 4-5 degrees every time it runs. What I'm wondering is why the differential can't be set to 0, so once the desired temp has been achieved the freezer will shut off. I had it set @ 69 earlier and it kicked on @ 68. Is there a setting that I'm missing or something I can do so I don't experience such a drastic fluctuation in temps? I really wanted to ferment ales @ the mid 60's range but unfortunately I can't because the actual temp will get down to the low 60's.
Any recommendations or feedback would be more than appreciated.
Basically I'm experiencing temp swings of about 4-5 degrees every time it runs. What I'm wondering is why the differential can't be set to 0, so once the desired temp has been achieved the freezer will shut off. I had it set @ 69 earlier and it kicked on @ 68. Is there a setting that I'm missing or something I can do so I don't experience such a drastic fluctuation in temps? I really wanted to ferment ales @ the mid 60's range but unfortunately I can't because the actual temp will get down to the low 60's.
Any recommendations or feedback would be more than appreciated.