Hi, I new to the site hope somebody can help me. I have a problem with my HVAC system. the problems its mainly with the blower. When I turn it on . i can heard the compresor turning on but the blower doesnt turn on. It does the same thing eather ac or heater.some time it works perfect all day , but the next day it might not work at all. ( blower).some times it works during the day and then not at all the rest of the day.