I have nearly one year old vaillant ecoplus 831,I have just five radiators changed my house and flushed system twice, refilled added inhibitor and now it only heats up to 54 celcius and stops,factory settings should be 75 C. Anyone know how to reset the radiator heating level?
It should still be under warranty. We recently called an engineer for that. The button that is used to turn up the heating was loose and wasn't turning the spindle inside the button.
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