main fridge comrartment not getting cold noticed compartment fed from main frezzer section

removed four courses of shelving and removed back panel in frezer compartment and exposed condensor cooling coil found that it had fozen over solid.next i unpluged fridge. and took blow dryer and defrosted coils note:put small container under coil to catch water next i visualy noticed that heter had shorted out due to age. removed old heater and tstat but pay attention to how you remove it because you it goes back in the way you removed it very very simple