Drayton Wiser & Baxi - Opentherm Installation Issues

grumpydad · 25 Sep 2022

@Ramaya I am looking to get a the same boiler and same Wiser control, can you kindly confirm if you have the wiser working via Opentherm?

dilalio · 25 Sep 2022

Ramaya said:
Found the issue after opening the ECU the installer had forgotten the testing loop in which was just making the boiler fire up at max all the time.

I was thinking this.
Normally a link wire is left in on 240v terminals.

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Drayton Wiser & Baxi - Opentherm Installation Issues

grumpydad

dilalio

DIYnot Local

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