Upon arrival Condenser was not running while cool mode was calling. Upon evaluation found Condenser board was throwing 08 code system didn't have line power. Checked main breaker box found Condenser breaker was tripped. Reset breaker ran system check found no issues. Tennant stated power company was working on power days before and shut her power off. Found no others issues in system Talked with Tennant about uv bulb replacement. Also talked about uvc 200 and the benefits uvc 200 has over standard uv system that last longer.