Vaillant ecoTec plus 624 displya constantly switches on/off

Joined
19 Feb 2009
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Location
East Lothian
Country
United Kingdom
Hello All,

Happy NEW !!!!!!!!!

I hope this years is a prosperous and heathly and wealthy one fro you all.

I attended a boiler break down today .

it was a Vaillant ectoTech PLus 624. When i arrived I found the boiler would not remain on. this was indicated by a constat on/off of the display (with no delay between on off)

Becuase display will not remain stable i am unable to use the control buttons to check any fault display or cycle through any of the button functions.

I havd manual and have dug deep in to the etherial world of Google but no one seems to have had this issue. I think it is the main board beucase I can here the relay cliking between closed and open position.

I checked the power supply during under fault conditions and found it to be stable which suggests the issue is within the boiler and my guess is main board.

Has anyone experienced this before?

many thanks.

also does anyone know of a shopr where i can buy the main board over the holiday period.

Thanks to all, and HAPPY NEW ! YEAR!!!!!!!!!!!!!!!!!!
 
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