Duo Therm heat pump (AC) fan runs but shuts off

Thanks for the advice... I checked the breaker panel and had good voltage. Ampmeter showed the fan drawing 2-3 amps then dropped to zero when the unit shut down (no high draw from compressor starting). So I went up and double checked everything and re-seated some of the spade terminals - to include the one from the compressor relay. Fired it up expecting to do more testing but it's now working. I believe it was a bad connection at the compressor relay on the control board. Thanks!