Just installd a honeywell thermostat (rth230b) it run until it reaches the set temp. then it shut off then it comes right back on within seconds. Please give some advice on what could be problem. Thanks

Sounds like anticipater needs adjusting,, just maybe,, not for sure your tstat has one

In you manuel or book it should have something about how to set for hourly cycling,, look at page 3

See page 3 number 4 to set the cooling cycles per hour.


http://customer.honeywell.com/techlit/pdf/69-0000s/69-1800.pdf