In message , Bob Minchin
writes

I have a morris 1000 workshop manual somewhere. Send me an email and
I'll try and find the relevant info, scan and send it to you.

Thanks Bob. I do have both Haines and proper BMC workshop manuals, but
have always been wary of fiddling with the control box. For twenty
quid, or thereabouts, fitting a reconditioned unit could be worth a try.
--
Graeme