I have a 7 year old Maytag side by side refrigerator which sits in the garage. Couple of days ago it stopped cooling. I unplugged it and plugged it back again. I find that I hear a relay click, the lights dim and the relay clicks back again a few seconds later (the lights turn bright again). This happens every half a minute or so. I can hear the fan but the compressor is not starting. Any help will be appreciated. Thanks.