heater

Hi all, after a year of searching and reading your great advice on this forum I took the plunge and bought a 2005 Gransport about a month ago. I've been grinning ever since but today I experienced my first electrical gremlin. Driving in the heavy rain I noticed a series of problems with the...

All fine until GS not used for 2 weeks Then air con and heater controls all inop. Eco and recirculation buttons also inop. E on display followed by dots. Drove car for about half an hour and all suddenly starts working again. Two days later same thing happens. Tried battery reset, swapping...