I have a a Hotpoint Mistral Plus FF80P. The compressor seems to run more than its off….I have no error codes, no leaky door seals…..The Question I have is if the Thermistor was not playing ball in the freezer the Green air temperature one I guess the compressor would run all the time…Is the Thermistor the same value item as the Yellow plugged one….albeit just a different coloured plug…..I guess it could also be low on gas….anybody had any joy with the refil kits