GE bottom freezer fridge stopped cooling

Refrigerator & Freezer Repair
,
1

GE Profile french door with bottom freezer . Both sections stopped cooling.

Found a thermister in the fresh food and freezer sections, they tested OK. Is there a third.

Both back and freezer fans run.

Replaced the main board, but still not cooling.

Any help world be appreciated!!!

Thank you,

Bill

2

Both fans work, but I don’t hear anything from the compressor. How do I check that?

Also is there a third Thermistor? I only found 2

Thank you,

Bill