That is correct. Without me topping it up, just off then on the pressure came back up to 1.5.
It didn't fall below 0.5 bar when the boiler refused to work - it was precisely 0.5 bar.
What I did last weekend was just turn heating...
Patrick_ posted a new thread.
I renovated my flat earlier this year and installed a new CH system as below:
* Vaillant ECO Tec Pro 24 combi boiler
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