Have a american standard twe air handler. The motor seems to be turning slow. The dip switches are set for high speed. Having problem with evap freezing. The charge seems good. Getting a fault code on cfm led of 7 blinks and roughly 8-10 secs of solid green. Any ideas? Thanks

It sounds like you have an ECM motor on the fan & either the control side of the motor or the control board in the air handler has gone bad. My guess is it is the control side of the motor. A tech could tell for sure.