Arrived at customer's house for system inspection and Unit intermittently turning off. On arrival customer showed me to air handler unit. Air handler unit was not draining properly. Activated float switch. Blasted condensate line with nitrogen. Unit now flowing fine. Unit putting out proper Delta T. Inside of cabinet has some biogrowth. Suggested UV light. Next went to condenser and hooked up gages. All pressures and readings are of acceptable range. Contactor sending proper voltage. Capacitor with in acceptable range. Unit checks out. Talked to customer about service plan and customer agree to sign up. Collected payment and signature for today's work and left. Customer happy.