On arrival system running and cooling as intended. I found no refridgerant issues with system, I did find that the sensi thermostat was reading 64 degrees when the actual house temp was 69. Recommended iaq 200 for biological growth and a new primary electrical control to replace the buzzing and failing one currently on the condenser. With customers permission I performed both repairs. When I left system running and cooling. Pausing call as customer paid via financing.