Whirlpool 1998 18.1 cuft. refrigerator, the both of room (freezer and fridge) temp. set up at worm and working normally, after freezer room set up temp. from worm to cool, after day found the both rooms got no cool any more, but compressor still running no noise,fun also running, but heard an intermittent noise every 5-10mim like air and switch click noises from compressor relay box, the compressor's body feeling litter worm, what's the problems? it's compressor or electrical system faults? Thanks for help.