My hotpoint ff71p fridge freezer has the freezer working ok -22 but the fridge is +17 instead of 3 deg. after removing the light fitting and baffle assembly and then holding up the door switch the fan starts and cool air seems to be coming out of the vent if it is left like this the fridge will not cool to below +15. im thinking thermistor (evap plate) or maybe on a constant defrost or the thermal link. any help warmly appreciated thanks..Joe