Try this website unless they've been taken over.
Lunar.6 Sherdley Road
Lopstock Hall
Preston
Lancashire
PR5 5JF
Tel: 01772 337628
http://www.lunarcaravans.com
I have a Lunar Solar which has CEC switch panel their address is
CEC Grange Pakr Lane, Willerby, Hull, HU10 6EQ
Tel; 01482 659309 FAX: 01482 650 635
You may have the same mode as mine I have a Lunar Solar 1997 send email to robertwhiting76athotmail.com
change the 'at' to normal email symbol as this forum won't accept email addresses. I will send an attachment copy in hope it's your one would be idea if you took digi picture and sent that in your email to see if I can fathom out what switch does what if not same as mine.
Bob
August 2009