Checked and cleaned all components. Tightened wiring connections. Upstairs Zone blows air when only downstairs thermostat is making a call for heating/cooling. Zone board is sending power to close damper. Damper motor has failed. Blower capacitor is below spec. Blower motor is leaking oil. Contactor is burnt and pitted. System is currently cooling with a 19° temp split. Both heating and cooling operational. Recommend looking into system replacement due to age/reliability, operating condition/cost of repairs, efficiency and r22 phaseout.