Thank you to all of you for the wonderful information. I looked again, its a Suburban heater, forced air flow. I checked everything you told me to do and it is the sail switch. I will be getting one in the next couple of days. I figured out how to get it changed and come Thursday when the temps go down to 9 my dog and I should be just fine. I have also arranged to get a propane heater for backup. I checked everything out and did a great deal of troubleshooting by all information received and found it to be just that. Should be a quick fix once I get the part. Dog is fine, she is buried under 5 blankets and a down comforter when I work. At night, she and I sleep under the down comforter and stay quite warm. Thanks for the concern about her. Once this problem is resolved, most of the problems I have on the camper are done. My next item to do is a 500 watt solar panel on the roof for electricity. Got any ideas where to get a completed one shipped to me? Let me know. Thanks again for the concern and all the help.
