osd not causing the problem.Any safty device which switched off the fire would not later switch it on whilst unattended.
Discussed the problem with Paragon engineers who confirm problem caused by faulty printed circuit board. Fire now working as normal.
I have exactly same problem.
Checked with paragon they said printed circuit board at fault (£29) so I have ordered one.
Have taken to isolating electrical supply to fire after I turn it off so it cannot come on itself overnight etc.
Doing this seems to have re-booted the electronics and the...