Spring AC Maintenance scheduled at a clothing store in Arvin, California. All units were cleaned and coil washed, filters changed and drain pans/lines cleared. Cleared damper fail alarms on units #2 and #5. #4 has a failed damper that's already bee quoted. Unit #3 has a noisy outdoor motor that should be replaced. Unit #2 has a burnt crankcase heater. Other units operational, will quote for repairs.