I had a new Ideal Logic+ 30 combi installed a few weeks ago with a nest.
I didn't notice it immediately but certainly for most of the time it has been making quite an annoying noise when the heating is on, like an engine revving up and down.
Looking in the menu on the front of the boiler the noise corresponds to the pump speed switching between 100% and 85% on a cycle of about 12 seconds at 100% then about 12 seconds at 85%, repeatedly.
The boiler is in the loft. The noise is noticeable when sat in front of the boiler, but strangley doesn't really seem any louder than when I am sat in the living room, about as far away as I can be, as it's reverberating through the wall it is fixed to and audible throughout the house.
If it stayed at 100% it would be audible but not as annoying.
I tried switching off pump modulation in the menu but it made no difference.
Is it normal for the pump to modulate in this way and make 'some' noise?
I didn't notice it immediately but certainly for most of the time it has been making quite an annoying noise when the heating is on, like an engine revving up and down.
Looking in the menu on the front of the boiler the noise corresponds to the pump speed switching between 100% and 85% on a cycle of about 12 seconds at 100% then about 12 seconds at 85%, repeatedly.
The boiler is in the loft. The noise is noticeable when sat in front of the boiler, but strangley doesn't really seem any louder than when I am sat in the living room, about as far away as I can be, as it's reverberating through the wall it is fixed to and audible throughout the house.
If it stayed at 100% it would be audible but not as annoying.
I tried switching off pump modulation in the menu but it made no difference.
Is it normal for the pump to modulate in this way and make 'some' noise?