Newer Vaillant ecotec boilers don’t have a traditional pressure gauge. They have a digital gauge shown on left side of the display.
You can see a more accurate pressure by pressing the top right button on the front of your boiler controls.
The first press brings the display to life.
The second press shows the temperature the heating is set at.
The third press displays the pressure in bar.
When the boiler is cold the pressure should be between 1 and 1.5bar.
If it’s too low you may have to use your filling loop to increase the pressure.
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