Arrived at the customer’s home to find the cause of odors from both units. Customer has had multiple duct cleanings and indoor coil cleanings in the span of the two years since the home was built. The customer already has had air scrubbers installed on both systems. Discovered that both units have fresh air intake ducts with no dampers to control their intake. Reported the estimates to the customer. Picked up the material from Ed’s Supply Alpharetta and Johnstone Alpharetta. On the upstairs system, installed a brand new fresh air damper. Cleaned the evaporator coil. Sealed the duct and installed the fresh air control module. Tested operation from the board. Due to issues after the evaporator coil cleaning, the customer wanted to pause the job and have us come back a different day for the other system. Customer said Friday with an arrival window of 11-2 would work best.