LCD Thermostat glitch?

[RogerWo]

I have a single zone LCD Dometic stat (fan/cool/ furnace). AC is Dometic 15k. AC & heat operates ok. When last using heat I decided to change the temperature differential from 2 degrees to 1 degree to avoid larger swings in inside temperature. After reprogramming the stat, when the stat calls for heat the furnace starts up and there is a noise in the AC and the fan attempts to start and then cycles off. This continues to occur until I shut the stat off. I changed the program back to the original setting and seems to be operating ok. Anyone have any ideas or suggestions as to what's going on? Thanks

[Bama Rambler]

Did you try initializing the thermostat once you changed the programming?

[RogerWo]

Did not. If I understand the instructions correctly, if I initialize it, it will return to factory default which is 2 degrees differential. This is where I have it at now. If there's a possibility that this will resolve the problem, I'LL give it a try. Wondering if anyone has successfully changed the differential to 1 degree successfully with these components. Also of note, the AC unit was replaced just before I bought this trailer. Is there any chance that there could be a wiring mistake when the unit was replaced?

[Bama Rambler]

There may be a possibility that it got hooked up wrong, but if that happened it wouldn't work with either deadband. I think it's a thermostat glitch.

[RogerWo]

OK. Thanks. I'LL just leave it at the current differential until I have a chance to check out the stat further. I may experiment with initialization and see if anything changes.