Yesterday, I noticed that the temp readout on my STC 1000 (built into the coffin on my keezer) was jumping around every second or two by as much as a degree. Then the heat indicator started flashing and my keezer would not come on. I spent over an hour rewiring every single part (twice). At that point all it would do is go into alarm mode Then as a last resort, I opened my spare STC 1000 and tried it and had the same result (alarm mode). The only thing left to try was the probe. Mine had been in a small glass vial filled with Vodka. I removed it from the liquid and no change. Finally, I connected the new probe from second controller and everything went back to normal. So now my new probe is in a 500mL bottle of filtered water. Since it is an aquarium controller, I know the probe is meant to be submerged in water.
I need a replacement probe for my spare controller. Has anyone found anything that will work?