This morning mobile RV tech, Dan, came to install the new converter. Now I can rest easy. Dan's charges are more reasonable than some of the other mobile techs. If he has more than one job in a particular RV park, he divides the service call amount by the number of jobs at that park. For example, my service call charge today was $35 -- half the regular amount -- because he had two jobs in Pecan Grove RV Park.