Micro Minnie FLX Truma CP Plus question.

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I have a question for other FLX owners. Are we supposed to be able to control our AquaGo hot water heater with the Truma CP Plus inside the trailer? I went down a little bit of a rabbit hole today looking up an alert while running the furnace. I had to download the CP Plus manual and while reading saw it referred to the AquaGo and how to change things via the CP Plus. So, I read the AquaGo manual and it references a control knob on units without remote control. I do not have this knob (at least from what I can see) and I see a communication cable leaving the water heater but the back of the CP Plus appears to only have 2 connected with a Y connector. I am assuming these are the furnace and ac since both of these I’m able to control with the CP Plus. Everything is functioning (have hot water) but I feel I may be losing some control and functionality. Any input would be appreciated.

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I have been able to access my hot water heater through the on screen menu. I did have to do a full reset once or twice and the heater switch needs to be on. I got an error message when i turned off the propane with the heater switch on.

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That did the trick. Must be another Y connector in the system somewhere. Appreciate the help !!