I have a rheem air handler that I can't stop leaking. I have clear the drain line changed out drain pan the vent is not stopped up it looks like water is being pulled off the coils to the blower

i have a rheem air handler that i can't stop leaking. I have clear the drain line changed out drain pan the vent is not stopped up it looks like water is being pulled off the coils to the blower

Lower the blower speed. The blower is probably running to fast creating too much negative pressure