6 flashes could be a throttle issue, but as always with these without much context it's impossible to give any definitive advice - you have to explain where it's used, how it's setup, what happened, etc. Any Sevcon dealer can sell you the programming kit, but it will be like $800, and doesn't guarantee you will be able to fix the problem anyway.
IFSP industrial flight systems is borgwarnner sevcon repair center in USA mail it in and they repair send back to you 2-3 business days. Or buy one on there site and get a core trade in credit for the broken sevcon controller.
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