Replaced rusted auxiliary drain pan. Replaced shorted circuit control board in air handler. Replaced bad blower motor and cleaned blower wheel being it was caked up with growth. Inspected whole system and zone dampers. Client had issues with main floor damper getting stuck closed per notes from Paul. Checked operations of both dampers and they are currently opening and closing with no issues. Alerted client issue can be intermittent and being it’s working now I can not say it’s defective to replace. Sealed up some leaks within duct work supply and return. Re positioned strap for supply damper to add support. Installed iaq 2000 and iaq 1000 bulb to help with growth in system and to purify air. 16x30x1 media cleaners needs to be special ordered. Filled out form to return and install when they arrive. Verified information with Paul in regards to wiring on zone board and why it’s wired the way it is which is to keep static pressure in line.