temp controller

[choffon]

i recently purchased a johnson controller model a419 and im not sure how to set it where it works to keep my freezer at 65 degrees.

this is what its set at

setpoint (sp)=65
differential (df)=default 5
anti short delay (asd)=1
sensor failure(sf)=

i wanna make it keep freezer at 65 and its reading 75

anyone used this before an able to explain to me how to use it

any help is appreciated

 

[Suthrncomfrt1884]

Where do you have your sensor mounted? You may want to try bumping up your ASD to 5 and lowering your differential to 1 or 2. I tape my sensor to the side of the fermentor when I'm not using a thermowell. This will give you a little more consistancy in my opinion.

 

[choffon]

sensor is mounted on wall of freezer....its not engaging freezer for somne reason. im gonna open controller up and se if its set right