I recently had trouble starting my central air unit. (Kenmore Model Soft Sound CAC 024AKA1) I replaced the capacitor with one slightly larger as the original is no longer available. When the thermostat is lowered both compressor and fan run. After 3 or 4 minutes the fan stops, but compressor continues running. I checked the current, and it is only drawing normal current for a 1/8 hp .7 -.8 of an amp. The fan motor has 3 wires going to it and I don't know if it is capacitor assisted. Wiring diagram was destroyed by weather so I am kind of in the dark. Any help would be appreciated.

Is the cap going to the fan the same mfd as the old one? If it is sounds like a new fan motor is needed.