2003 upstairs system is in relatively poor condition, howbeit fully operational at this time. Run capacitor is significantly depleted, and compressor start amps are also extremely high. Run capacitor needs replacement and hard start capacitor needs to be installed. In addition there are no float switches installed in the attic to protect home from water damage. It is highly recommended to replace the system at this time. WiFi thermostat encouraged. Downstairs mini split has encountered a communication issue with Air Handler C. It is not advised to endeavor to repair this rebranded Alpine DIY system. It will likely prove to be more costly than the equipment is worth, assuming the parts are actually available.