Ok we'll I've wired this up and it's working kind however the hot water light is on all the time now and status 7 is on the led display ? I previously had the boiler in dhw only mode and now I've set it to combi.
Hmm - if the unit is set to dhw it works fine , when there is demand the light comes on and goes off fine.
When I put the unit into combi mode, even with the receiver disconnected - the boiler goes through the sequence 3,4,7. Then stays on 7. And seems to be heating the rads ?
If the receiver is connected and gets a request from the controller then boiler water light goes off and the rad light comes on and 5 is indicated not 7. If i turn the controller stat off then the the led goes back from 5 to 7.
Which is right I guess but why 7 on all the time ? Am I missing something ? !
Having left it a bit longer it seems to go off and (7 "mode") periodically
Hmm it appears I might have adjusted parameter 2 by accident at some point ! Was set to 2 (ch pump continuous) . Setting to 0 seems to have sorted it. As there was no stat connected for last few weeks I was using the service menu to switch between dhw and combi mode. Parameter 2 is the one after the one I've been changing - probably did it after a few beers oops. Thanks for responding dan
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