I could really use some help figuring this out:
We have 5, 7 bbl fermenters all tied in on the same glycol system. All are double-jacketed. We have one fermenter that we have to turn the glycol on/off manually by opening and closing the ball valves, because it over-cools the beers. I think the problem is electrical, but I don't know that for sure. Here is what I've seen/done:
-Replaced the solenoid. I think we had 1 good brew after this, where it fermented at 67, but then the next 2 batches, it over cooled. For instance when we set the temp controller to 64, and come in the next day and it's at 51.
-Switched the temp controller with one from another tank. The same tank was still over-cooling, so there went that theory (none of the other tanks have issues).
-I've been feeling the glycol lines manually to see if we are getting glycol flow into the tank even when it's not calling. I haven't been able to catch it doing that.
-The thermocouple that goes into the probe is just 2 wires wrapped together. The manufacturer assures me that is what it's supposed to be. I cut off about an inch of wire, re-stripped and re-wrapped it just in case the tip of the wire was bad.
At this point I'm stumped...thoughts? Maybe something else electrical? I don't see how it could be glycol bypassing the solenoid when it's closed, since it's brand new.
We have 5, 7 bbl fermenters all tied in on the same glycol system. All are double-jacketed. We have one fermenter that we have to turn the glycol on/off manually by opening and closing the ball valves, because it over-cools the beers. I think the problem is electrical, but I don't know that for sure. Here is what I've seen/done:
-Replaced the solenoid. I think we had 1 good brew after this, where it fermented at 67, but then the next 2 batches, it over cooled. For instance when we set the temp controller to 64, and come in the next day and it's at 51.
-Switched the temp controller with one from another tank. The same tank was still over-cooling, so there went that theory (none of the other tanks have issues).
-I've been feeling the glycol lines manually to see if we are getting glycol flow into the tank even when it's not calling. I haven't been able to catch it doing that.
-The thermocouple that goes into the probe is just 2 wires wrapped together. The manufacturer assures me that is what it's supposed to be. I cut off about an inch of wire, re-stripped and re-wrapped it just in case the tip of the wire was bad.
At this point I'm stumped...thoughts? Maybe something else electrical? I don't see how it could be glycol bypassing the solenoid when it's closed, since it's brand new.
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