Funny, I am also having a problem today with my Pulse Furnace (installed by previous homeowners in 1993). This is my fourth service call in 2 years of owning the home. According to the repair person, these are touchy systems. I trust the company I am using for repairs. The repair man has gone to get some elusive parts, so I hope to have a final diagnosis/solution in a few more chilly hours! Although it is only 10 years old, I am considering replacing it before next winter. Any thoughts on this furnace would be appreciated.
It is 55 degrees in my home now (5 degrees outside temp).