Hire repairs or DIY?

[Eric Davenport]

Hello everyone! 

I am a new investor house hacking my first duplex. I am a decent handyman and can usually figure things out. My tenant's AC went out and I would like to save on repairs as much as possible. Would It be worth it to troubleshoot myself (look at thermostat, check breaker, look for overflow on the unit). Or should I hire someone and save credibility rather than money? 

Thanks!