My ac/heat pump unit outside turns on just fine whenever the thermostat clicks, but the blower sometimes does not come on. If this happens we have to either switch the thermostat off and move the temperature gauge all the way up to 90 and turn the thermostat back on and set the gauge at 70 and the blower will turn on or we have to turn off the breaker and flip it back on then the blower again will come on. Does anybody know what the problem is: