Ok, When I switch my thermostat from off to cool, the condenser comes on, but no blower. I can switch the blower on by switching the thermostat from auto to on. But the blower will not come on like it should with the regular a/c call from the thermostat.

Any tips on how to correct this problem?

Brand and exact model number of outside unit?

Brand and exact model number of inbside unit?

Brand and exact model of thermostat?

Get a new control board

My mistake actually, sorry for bothering you. I jumpered red to yellow. Bad thermostat. Replaced it with a white rodgers 1f85-0471. Got a 17 degree temp split, after balancing it.