Have a Intertherm furnace in my mobile home that is about 10 years old and has worked fine until last year. It will cycle the blower off and on a couple times during the warming cycle until it reaches a certain temp in the house. If it is above a certain temp in the house it runs fine and works...

I have a new Carrier 25HBR 13 Seer 1.5 ton heat pump and in the heating mode when the outside air is below 35, the unit cycles like crazy. Keeps me up at night. Is this correct? I have tried two different thermostats with the same result.

My furnace only runs for 15-30 seconds at a time. It will kick off and then fire up 2 minutes later for about another 30-40 seconds. The desired temperature is maintained but the very short on and off cycles are very annoying. We were told it may be our thermostat so we installed a new one and we...

I have a carrier 8000 furnace model#58ZAV050-08-serial#3395A20997. In the past ten days the furnace cycles through and run for a while then shuts down.I'm not getting any LED codes. The flame sensor looks good, the high pressure switchseems OK,no indication of a cracked exchanger the flames in...

We have an old furnace,not quite sure how old.It is a Bryant Quietair.I noticed tonight the burners would light,stay lit for a few seconds(30-40secs.),then go out,and then relight a few seconds later.The fan is running throughout the whole process like it should.This goes on constantly.What is...