ESI 2 Valve to Tado V3 Wireless

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25 Feb 2026
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Hi All,

I am currently trying to get Tado V3 Wireless set up on ESI 2 Valve PCB (no hot water). I have followed several threads on here and else where but unable to get it working fully. I have managed to get it into the state in the pictures attached (1st is of the original set up) and can confirm when powered up it calls for heat and hey presto both valves open and the boiler heats the water.

The trouble is the stats didn't call for it and the boiler wont stop, I have tried my best to go through all the threads to see if I had missed anything but cant see my mistake other than buying a house with an ESI set up!

Current wiring
PCB - Receiver
0v - NO
RH - NC
L-L
N-N

Receiver Loop
L-COM

I have tried with the +V wired to NC but that did not change anything.

It has been a very long evening doing this!

Any help would be much appreciated!
 

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