Upon my arrival I spoke with the customer about their concerns with the system not cooling. Performing my diagnostics I found the comfort control circuit system is faulted not sending cool call to the indoor system. I spoke with the customer about their repair options and went over maintenance. Customer approved repairs today and signed the rental on to out maintenance program. Return will have to be scheduled preferably in the morning since this is an attic systems. Customers gave door code and gate code to gain access to the home since it is unoccupied and they may not be in town.