Upstairs unit. Clean drain. Changed filter. Customer provided filter. Fix insulation around Line set. UV light working. Checked amps on heat strip and blower motor. Both tests fine. Checked all electronic components. Main level unit. clean drain. Change filter. Fix insulation around Line set. UV light working at this time. checked amps heat strip and blower motor. Both test fine. Checked all electronica components. Basement unit. Basement filter still good. Clean drain. Checked all electronic components. Checked amps on heat strip and blower motor. Checked amps on compressors and fans on all three outside units. All three test fine. All three heat pumps, running as Shooed.