Nothing personal taken, honestly.
When it looked like we had this cracked, I changed my 1 minute periodic check to 15 mins.
So although the temp is DEFINITELY changing, during the odd occasion, the WAIT isn’t being ‘restarted’ (I. E being kept on a virtually permanent ‘hold on, start again!’ cycle). Its instead being allowed to progress counting for 15 mins, and when that 15 mins is up, its flicking the FAULT switch on. And seconds later (when the temp registers the next frequent change), the FAULT switch is promptly disabled
So for now, timer is still at 15.mins and TCP is default. Although I’m now wondering if the TCP should actually be put back…
edit… for some reason, i’ve just spotted that the temp didn’t change for approx 15 mins (0228 til 0243), so that’s a legit catch. Looking again…