Trumatic E controller not turning on

Joined
Apr 12, 2025
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111,755
MH
Hymer S650
This maybe a safety problem.

The Beast had a new trumatic combi e boiler fitted in 2022. Whilst the dealer who fitted it is happy to take a look, it's a 7 hour round trip.

The manual references a Truma cp plus, I can't find the Inet box either.

However, the old E controller is still fitted. There are two wires that look like they could be the reason nothing is working. So a few concerns

1. Can a new combi E work with an older controller.
2. If the above is no and it is operated by the app, where would the Inet box be located in a 1999 S650 Hymer
3. If the old owner reinstalled the original boiler, would the two wires make it work
4. Where are the boilers fitted so I can confirm some things

I've attached some photos. One is the controller switched on and no lights. Another is from the page from the supposed newer boiler and the last is of the two wires that look like they should fit into the blades

Having fun, Steve



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