Kitchen Aid Fridge Cooling issues

Hello,

I’ve got a 12 year old side by side Kitchen Aid fridge that went warm the other day. All fans and lights are working. Start device would click loudly when kicking the compressor on. But, would only run for a very short period of time. Coils were badly dust covered. Coils have now been cleaned. Replaced the start device (part # wp2319792) and capacitor (wpw10662129). Compressor still only clicks on for 30-60 seconds. Tested the compressor with a multi meter and got readings of 4 and 8 on the side side by side prongs. I’m at a loss as to what to try and troubleshoot next. Any advice would be appreciated.