Ac maintenance. Customer stated he had problems with system running non stop. Hooked up gauges and found unit pretty much empty of refrigerant I added about a month ago. Searched for leak and couldn’t find any with soap bubbles and nitrogen. Talked with customer and decided best option would be unit replacement. Customer got approved by greensky and unit is set up for install tomorrow. Customer needs it to be in afternoon 12-4 morning will not work.