I did find a minor issue with the power source connectors. The connection uses a connector that has a center pin that is 12v positive and the outer part is the ground. For some reason the inner pin may not contact the inside of the power plug if the connection is disturbed. This results in an open connection. The result of an open connection is a non-powered heated hose. This condition in a cold room with a high humidifier level for me was a cascading waterfall. I had this problem a few times. I resolved it with a simple approach, and I wanted to share this with everyone. The solution to this issue is a one time thing and it should last for the life of the hose.
1. Put a very small amount of conductive lubricant on the inside 12 v Positive terminal of the power supply plug. Small means small. You do not want excess lubricant piling up inside of the plug.
2. Connect the power plug and the hose plug together. The connection will spread the lubricant onto the pin.
3. Disconnect the two plugs and wipe all excess lubricant that may be present. If you used a very small amount, there will not be any excess lubricant to wipe away.
4. Reconnect the two plugs and test.
The conductive lubricant will keep the connection established and the hose will stay warm.

