Ac Blower Fan Not Working In Auto Mode

Wiggled green wire where it connects in the air handler and auto fan mode seems to be working now.

Ac blower fan not working in auto mode.

Is the thermostat not working correctly or something in the ac unit causing it to do this. If i have problems still i will return. The outside unit keeps running when cool on. The heat and fan worked well over winter.

As a side note i was a bit worried of fire if the blower did not turn on. I read somewhere the blower had a 4 min count down before turning on again. Fan will not come on in the on position or your fan will not come on when you turn the thermostat down in the air conditioning mode. All the wires in the thermostat seem connected so i am at a lost for the cause.

So for some reason the auto fan mode does not work. The ac compressor outside works fine. I swapped out the circuit board but the same problem persist. The inside fan doesn t run when in auto mode.

I slid the thermostat switch to heat to see if the fan blower would work in that position. I can also turn the fan mode to on and the fan will run. However if the system is in cool mode and the fan is set to auto nothing happens. If i leave the fan on then the ac works fine cooling correctly.

My home ac fan blower does not work in auto mode but it does work when i slide the switch to on.