Bryant furnace fan cycles on 1 or 2 times for 2 or 3 sec. after heat cycle has ended
I have a Bryant furnace Mod. #394GAD024050 and after the temp has reached the set point and the furnace has cycled off the fan will come back on a couple of times for approx. 2 or 3 seconds. In the older furnaces with a machanical fan/limit switch some times the temp would creep up and cause the fan to come back on for a few seconds. My question is what energizes the heat relay on this type of furnace with the control board and why would the fan just come back on a couple of times? It seem to do this when the heat cycle has been around 10 minutes.
Lamar