My fridge started buzzing intermittently for about 30 seconds over the past few weeks, but had no other issue. Then one day it buzzed every three minutes and the food started to melt. The fridge also lost its cool. I unplugged the unit for about an hour, plugged it back it, and it's been running okay for about a week, but I still hear the buzz every so often.

Should I replace the starter relay? Should I also replace the capacitor? Thanks.