Moje Posted April 13, 2021 Share Posted April 13, 2021 Hi, Wondering if anyone can help. We’re away on holiday and our Truma ultra flow smart switch broke. I’m attempting to replace it but did not take note of the wiring and now unsure which way the new one should be wired up.I would be really grateful for any advice.Caravan is a Coachman 575. Thanks so much for any advice. Quote Link to comment Share on other sites More sharing options...
Martin Posted April 13, 2021 Share Posted April 13, 2021 Looks to be 3 wires Positive (+) Pump Negative (from the pump) you may see this cable route to the pump terminals so could be easy) Negative (-) What colour wires have you got and do you have a multimeter/tester by chance? If you can upload a photo it may help.... Quote Cheers, Martin Link to comment Share on other sites More sharing options...
Moje Posted April 13, 2021 Author Share Posted April 13, 2021 Hi Martin, thank you so much for your reply. I’ve now fixed it .. really, really grateful for your help and advice. Quote Link to comment Share on other sites More sharing options...
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