Performed CMA Inspection on 1 rooftop Package Heat Pump system. -System is cooling properly at this time and has a Delta T of 20 degrees. -Challenges still exist with heat strips as previously reported. -System will not operate correctly in defrost mode, auxiliary or emergency heat during cold weather until problem with heat strips are addressed. - Tech completed filter change of 2-20x35x2 filters. - Tech flushed drain lines and added condensate treatment tablets to drain pans. - Fan, compressor and BLOWOR motor amperage were inside correct specifications on todays visit. - There are pictures and a performance report attached to this invoice.