1985 Vanguard Class C
My friend just bought a used 1985 Vanguard Class C mini motorhome. She does not have internet and asked if I could please find out this information for her. There is a switch on the dash located to the left under the steering wheel. It is labeled Aux Heat Coach, Aux Heat Tanks, Battery. She needs to know what this switch actually does and how it works (how to properly use it). Thank you very much for any help you can give. I am located in Alberta, Canada and this is a Canadian unit in case that makes any difference.