harriser1@live.com

Brett: Thank you for posting here. I have a question for you. I have a 1998 Bounder 36s with two roof mounted AC units. They are Coleman ducted units with a wall control panel located in the salon. There are temperature sensor mechanisms in the salon and in the bedroom. The control panel has a separate control for each unit. You can choose heat, low fan, high fan, low a.c., high a.c. or auto. When you choose high or low a.c. the fan runs continuously and the compressor cycles on and off - just as expected. My question is about the auto setting. I would think that with the auto setting, the fan and compressor would come on only when the temp. rises above the setting chosen on the thermostat. Here is what mine does. If I set the temp for 72, then the fan cuts on at 74 and then the compressor cuts on. The coach cools down to 70 and then the compressor shuts off but the fan keeps running. The fan does not stop running. The temp goes back up to 74 then the compressor cuts on and drops the temp back down to 70. Again, the fan never stops. I had a 2004 travel trailer with a Dometic ducted ac with wall control. On that unit the fan and compressor only ran when necessary and once the desired temp was reached, the thing shut off and the fan did not keep running. Is this an older design characteristic on my 98 Bounder? Is something wrong or are the units performing as they should? Thank you.