I have 9610 Robertshaw Stat with Day temp set at 70 and night set at 65
There is no problem keeping house okay but at 6AM when the call to change to 70 the Temostat calls for Heat the furance startes blows air but stops like the temp is reach at 65 this will repeat serveral time I use the switch on stat to go from heat to off and back to heat the furance comes on it's own and work's fine to rasies the temp to 70 I don't think the Stat will make this change temp on it's own but has no problem at 12AM droping to 65