I have a beverage cooler for fermentation temp control. I have wired up the stc-1000 dual stage temp controllers but I have literally blown 3 or 4 on them. They work fine on my 7cf chest freezer but as soon as I hook them up to the beverage cooler, it blows the relay. See the attached picture that shows the specs of the beverage cooler. It says 8.5 amps and the stc-1000 says up to 10 amps. That's why I'm not sure why they keep blowing. I also have a ranco single stage temp controller and it works fine on the beverage cooler. But it's single stage and I need dual stage. Can anyone help?
View attachment 1475326296855.jpg
View attachment 1475326296855.jpg