What is the differential set at????? If it's more than 1, then you'll get the broader range of temp swings. All the t-stats I own are JCs, and I've set the differential to 1. Now, that means it will click on and off more frequently in a room that has large temp jumps (like my old house's bedrooms & livingroom where the snakes were) but now that they're in a room w/a steady temp, they don't on/off as often.


Check and maybe reset the differential and see if that will help.


RuLyn