Last weekend, I replaced the condenser motor in my Air Ease heat pump (circa 2004) outdoor unit. The system ran beautifully all week until last night.

Now, neither the fan, nor the compressor will kick on. The indoor air handler comes on fine.

Things I've done/checked:
Reset breakers (both for the heat pump and the air handler)
Looked for a reset switch
Verified 220V at outdoor cut off box and at contactor input.
Verified 24V signal at control board from thermostat.
It appears as though no signal is being sent from the control board to the contactor.

Is there something I'm missing?

BTW, I was promised a service call today from my friendly local HVAC contractor, but none has showed. It's going to be a long hot weekend.

Thanks for any info!!