Complete 2 system a/c repair and preventative maintenance check. found both units running with one form of water safety. Recommend inline float switches for both units. The customer would like to replace the downstairs thermostat with a new one. Both out door units have good pressures and all electrical components are good. Recommend surge protectors to both door units to prevent any problem to electrical components inside and out. The customer would like to do float switches and thermostat. Need to schedule to come back Monday to complete repairs.