I’m new to this forum but have been on the other forum in the past.
Basically I have a Mara X that is set to operate in steam priority ‘I’ mode and after nearly a year of faultless operation I now cannot get the steam boost to kick in. Just to be clear the machine warms up fine and then settles at a boiler idle pressure of 0.5-0.8 bar. Group head temp is correct on a thermometer but no amount of flushing engages the ‘steam boost’ anymore. Also, if changed to steam priority ‘0’ position this appears to be working correctly with an idle boiler pressure of 1.25 bar (temp setting ‘I’).
I have the option of sending the machine back to BB but obviously avoiding that would be preferable 👍
Thanks in advance.