Customer said that the mini split for the sun room was not working. Found the unit to be throwing out an error for communication failure. Ran diagnostics on system and found no issue with the outdoor board. When I went to start checking the indoor boards the system started operating again. Ran system for 20 minutes, turned it off for a few, then back on and the unit ran fine. Estimate is attached to replace indoor boards if issue happens again. Thank you for your business.