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Combi Boiler display quickly going from 75,76,77…80,75…

Joined
5 Mar 2022
Messages
45
Reaction score
4
Location
Sheffield
Country
United Kingdom
It iterates very quickly almost in a second from 75 up to 80.
It’s not an error code at least not one coming up when searching.
The pressure is fine (in the green range).

I had recently turned the heating on for the first time in a couple (summer) months.
Nothing unusual.
Any ideas?
 

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