Hi,

Should check the defrost heater and defrost thermostat first for that frosting...

Name: Defrost-Heater-Assembly-242044113-00736744.jpg Views: 108 Size: 29.4 KB Defrost heater Manufacturer Number 242044113



Name: Defrost-Thermostat-5303918214-00835062.jpg Views: 111 Size: 23.2 KB Defrost thermostat kit Manufacturer Number 5303918214



If either of them test as bad, replace it for the frosting issue.

Board should be replaced for the control issue...

Name: Control-Board-241739711--01063171.jpg Views: 109 Size: 2.9 KB Control board Manufacturer Number 241739711

jeff.