Johnson Digital Temperature Controller
Posted: Tue Feb 28, 2012 7:53 pm
by i like beer
i just bought a Johnson Digital Temperature Controller i cant program it
it keeps i raising the temperture pass the set preset do not know wat i
doing wrong
Re: Johnson Digital Temperature Controller
Posted: Wed Feb 29, 2012 2:50 am
by bigdan
Depends on what model you have, but the Johnson controllers usually have a jumper for heating or cooling. Another possibility is that the differential could be set wrong, allowing for the temp to rise. Example if it a 5 degree dif. and it's set at 70 it wouldn't come on until 75. Do you have instructions, if not look on-line?
Re: Johnson Digital Temperature Controller
Posted: Wed Feb 29, 2012 5:35 am
by Stinkfist