Completed one system maintenance verified, and change filter clear drain lines checked all safety and components while maintaining the system. Disconnect to air handler is seized. No safety switches on air handler contactor on condenser is pitted , compressor is needing a hard start kit whip on outdoor unit is needing to be replaced. Spoke with customer about all repairs that need to be done. Customer agreed tech tested all repairs that was done at this time system is operating. Make all repairs necessary to restore the unit to full health and eliminate all other concerns.