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Discuss "XR Box" Inside Valliant Boiler in the Central Heating Forum area at PlumbersForums.net

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Hi all,

I was wondering whether someone could identify the attached device inside a Valliant ecoFIT pure 435.

It is showing 32ohms of resistance across the live wires, so it isn't just a junction box.
 

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Looks like a grundfos item
 
Looks like a grundfos 98525489

Eg suppressor
 

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