Thermistor Port Upgrade

Two brews ago I began having issues with my temperature probe connections. The ETC controllers were getting readings that started to climb and never stop. The connections on the QD box in the stand turned out to be a little bad, so I switched to plugging the probes directly into the panel. This eventually stopped working as well and after some testing it became clear that the DC power plug connectors I was using were not making good connections.

For the last brew I updated my system so that the temperature sensors now use RJ11 jacks and plugs. I got the idea from the Brewtroller guys who have been using them for a while. The RJ11 jacks do seem a bit outdated and don’t have the cleanest look when mounted to a panel, but the connection is solid, the plugs are easy to attach to the sensor, and there very good reliable QDs.

The fix I made is a little ugly because I left some of the existing plug holes in place, but overall it works very well. We had no problems whatsoever during the last brew. Also, I was able to wire one RJ11 cable for the panel to the QD box on the stand to support both sensors because the wire I have a 6 strand and the plugs I have 4 leads.