Customer said the last few days the AC climbs to 87°. Performed full system evaluation and unit is running well at this time. 22° delta temp, refrigerant levels are within range, checked all electrical components. There was a tiny amount of water in the primary float switch. The water may have been backing up later in the day causing the unit to not cool. I removed the batteries from the thermostat and explained to the customer that if this goes blank to check the float. I cleared and flushed the line and pump. There may be an intermittent issue that is happening. Possible further diagnosis needed if customer notices any changes. Left system working and in cooling mode. Customer will hold off on membership renewal.