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another ISAR M30100 question?

Had error that PCB faulty - replaced with new one, jumpers correct - but still wont start - Display comes up with 5 followed by c then d. Does anybody know what this means

roman, November 2010

home Fix label Heating label_important Home Heating Systems

Fix Fault - Heating

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Fix Fault - Heating

home label Heating label_important Home Heating Systems

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home Fix label Heating label_important Home Heating Systems

another ISAR M30100 question?

I can answer this question...

another ISAR M30100 question?

I can answer this question ...

another ISAR M30100 question?

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