tommy12398 Posted December 17, 2022 Share Posted December 17, 2022 Hi my air source heat pump is switching off with a flow error , but only when it needs to get the hot water tank to temp. If its calling for heat for the ufh it works fine? Any ideas 💡 Link to comment Share on other sites More sharing options...
JohnMo Posted December 17, 2022 Share Posted December 17, 2022 3 way valve, or if you have 2x 2 ways, the one for the cylinder has stopped working? Link to comment Share on other sites More sharing options...
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