Anyone owns a BDB and has leaking group head before? Is the group head collar insert the culprit?
From what i read on the standard service of BDB..
Usually 2 years you need replace all the O-ring..
And for the Group head to leak - maybe O-ring or from the sensor tip ( the white color ceramic insulator)
If you can, open the top off and start the boiler to see where its leaking..
If not, send in for a full service and ask them to replace all the O-ring..
I went once, its at Jln Pemimpin there..
Drop off, took them about 3 days. (But that time it was under waranty)