Lennox ac shuts down intermentantly
I have a Lennox system that is four years old. Recently, after a pwr outage, both of my thermostats have had the pwr light go out and the system does not work, except for the blower continuously running. The weird part is if I leave it alone after a few hours the system starts working again, and the pwr lights are on. This has been going on for a week and the system will run for a day and stop and than start again. The AC guy came out one day and he could not find any thing wrong with the system, freon was OK and all the electrical voltages were normal. He suspects a circuit board in the furnace but is not sure without replaceing the $167 part, which I buy weather it fixes the problem or not. Any ideals?
Thanks for any help :confused: