Vaillant ecotech combi boiler - has hot water no heating

There is just dip switches on the reciever and jumpers on the transmitter to pair the 2 parts so they should still be linked unless someone has changed the switches or jumpers.

The instruction manual for the version you have is here.
 
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I have experienced a Salus wireless stat that needed its batteries replacing. Then refused to sync.

Nothing else was changed/disturbed, but it simply refused to sync.

A couple of hours later, for no apparent reason, it synced again. So, if all else fails, just leave it to its own devices and it will probably get there in the end.

Echo to all the comments on here about Salus being cheap cr*p. If you have a choice, spend a bit more, avoid the grief.
 

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