Apologies in advance if there is already a thread somewhere on this that I can't find - new to this site & would be grateful for any help.
Our Brivis HE30i shows an Error #40 on the network controller and fan does not stop even after turning controller off. Continuous running of fan but won't heat or cool.
Message on heating unit displays OHEAT_R-A (Overheat Reverse Air) followed by POSTPURGE.
Any idea what part may need attention/cleaning/replacing?
Thanks in advance