[clay1g1]

The air compressors for the upstairs and main level went out today. Both units are around the same age but I doubt both units would go out at the same time. I flipped the inside breaker switches on and off and still nothing from the compressors. The inside units still blow air. But the fans on the outside compressors aren't turning. I also flipped the outside switches that are above the 2 outside compressors and still nothing.

Is there anything else I can check?

 

[57TinkerMan]

I also flipped the outside switches that are above the 2 outside compressors and still nothing.

Is there anything else I can check?

It's possible that there are fuses in the outdoor unit electrical disconnects. If so, it's very important to know what you are doing when checking them.

 

[roughneck]

Are the outdoor units getting a call to run? Is there high voltage to the units?
Use your meter to check.