My Hotpoint Integrated fridge(Model 6935) of some 17 years vintage stedfastly refuses to drop below 10 degres centigrade. The compressor never stops presumably because it doesn't get cool enough - it doesn't switch off no matter where the control is turned to except when the control knob turns the compressor off altogether at lowest number. Door seals appears good all round and not broken or sagging anyhere. - tried with a piece of [aper and it grips it moderately well). Rear of fridge is constantly icing up - presumably due to auto defrost not working. Is it fit only for that great scrapyard in the sky.