Hi. Got an diplomat ADP8332 PNC 854500215820 S/N 330325008322. hAS F1 in display, even if you cancel comes straight back as F1. Is it allmost certainly the NTC at fault (rather than the pcb). Heater continuity ok and no short cct’s. If it is more than likely the NTC, is there any particular way you have to install or recode machine after repair thanks.