Casquette Classique I would appreciate your expert opinion if you believe what I’ve done is appropriate and adequate troubleshooting and if I’ve reached a sound conclusion about replacing the defrost board. Although I’m no expert at using it

I would appreciate your expert opinion if you believe what I’ve done is appropriate and adequate troubleshooting and if I’ve reached a sound conclusion about replacing the defrost board. Although I’m no expert at using it,
Casquette Classique, I do have a multi meter at my disposal and could take any necessary readings if told exactly where/how to take them. Thank you!.