We have an Intergas Xtreme 36 HR boiler in our new...

We have an Intergas Xtreme 36 HR boiler in our new-build home and it starts every 1 to 5 minutes for 3 seconds. This without using hot / hot water. Since we sleep right next to the boiler, this is a very disturbing noise.
Immediately after delivery I reported this to the installer of the construction. He couldn't find anything, so I contacted Intergas. Instead of giving advice or recommending another installer with more knowledge, the hands were taken off.
It's their product, but they don't take any responsibility or after sales. Everything is put on the installer and you have to do it.

Update: An Intergas technician has now visited. The boiler is functioning properly. Because of the service, I gave 1 extra star. The device still keeps showing the same 'annoyances'.