[Studio3]

Thanks for you help. I have rebooked a visit from the engineer but would still like to have more information on the contriller functions and test procedures.
Regards David

[Studio3]

Thanks for your reply.
Had an engineer come to fix the freezer which was not chilling. He replaced the mother board and went away but it is still not working. On leaving he said something about the self diagnostic port was going to ground so he shorted it out. I assumed he meant on the old board before he replaced it but I was wandering if he meant the new one. It would be nice to know a bit more about the mother board and how to test for faults.
Dave G

[Author]

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