I went out with friends last night and one of them in the back of my camper van pressed some buttons on the little black box under the bench seat that controls one of the rear heaters. How do you turn this off quickly or set it up. When I first looked at it it was flashing digits and I left it alone. But when my fried pressed it by mistake the van was getting very warm and did not stop when I turned the engine off. I think it runs off the leisure battery. I think the display shows temperature and press another button for time, but there does not appear to be a simple on/off switch. Any info would be helpful.
thanks, Martin