How can i fix?

No mention of this in the engineering manuals mike,however I have seen these spurious codes when the EPROM/NVM has failed.

Not sure on yours though,

This code....what it is preventing you from doing regarding operation?,

Are you in the trade because I have read similar postings on various pro sites?.

e manno
June 2012

Well I've looked at 3 different versions of the 9651 panel and can find no mention of a 408 fault.

acorn
June 2012