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Lee E

Truma Combi Operation Query

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Hi,

I dont know how helpful this is after a year, but I had exactly the same problem with a new Bailey Pursuit bought 2 years ago. After repeated failed attempts by the Bailey dealer to resolve, I have found a workaround this year. After setting the timer, don't leave the manual setting in off mode. I set the space heating to manual 'on' but at a low temperature, say 5 degrees C. The controller stays active, without actually running the heating (unless it's bloomin cold!) I don't understand what's going on, but there are no errors when I do that.

 

Dave

Hi Dave,

My Truma Combi was given a thorough look at by my dealer at the beginning of this month. They fitted a new combustion air fan, which apparently is used during the start-up sequence, even when the combi is operating on EHU. As yet I have not had the chance to try it out, but will be stopping at Morn Hill CC near Winchester on Thursday for 3 nights, prior to going over to the IOW. I expect we will have plenty of chances to test it out.

David

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Does anybody know if it possible to have more than one timed period with the cp controller, could I set it to come on 0700 to 0900 and 1700 to 2100 on the same day.

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Does anybody know if it possible to have more than one timed period with the cp controller, could I set it to come on 0700 to 0900 and 1700 to 2100 on the same day.

As far as I can see this isn't possible, maybe the next version will have it.

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Apologies for dragging up an old thread, but I ended up here while trying to understand the Truma Combi in our new 2017 Coachman Vision.

 

On a sunny day with the Combi/CP Plus set to 20C (room), ECO (water) and EL2, we came home to find 'no' hot water.

 

I received the following from Truma:

 

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When the hot water is set to Eco, the water will heat up to approx. 35 degrees and the residual heat will then take the temperature up to about 45 degrees, it will then begin the cool down process and will actually cool down to about 27 degrees before it starts warming up again. The temperature sensors are on the tank, not in the water so the tank has to cool down sufficiently before the heat up process restarts. If you turn your tap on when the water is at the cooler end on the cycle, it will feel fairly cool.

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Since the ambient in the 'van was above 25C on a Sunny day in Hampshire, I guess that keeps the sensors warm while the water cools down.

 

I also asked about the comment in the manual about 'not being able to maintain 40C with heat/water active over an extended period' as the OP mentioned, but have not had any help on that score. I suspect that what it means, if the heater is working hard to keep the 'van warm, the water temperature may exceed 40C.

 

Hope this helps. ..

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