JJLJr
New Member
I have a Honeywell RTH 6300 Programmable Thermostat. It is about one years old. I have a Weil McClein gas furnace that is about 1 1/2 year old. My house is insulated and the windows are new. Here's my problem. In the vening, the thermostat kicks on maybe every 20 minutes. It stays on for only 2-3 minutes and then shuts off. We have it set for 69 degrees but the house doesn't feel warm. The cycle is so short that the bedrooms at the end don't get any heat. I've reviewed the manual and settings are correct. I didn't notice this problem last year. Of course, last year is was much milder. (I will add that the Tstat seems to work fine in the morning and afternoon when the temp goes from 62-68/69). I have a cheap Lux on a separate zone and it works fine. Any help would be appreciated.