The reason for the appointment today was for the downstairs system not cooling. Upon inspection found gas, furnace, and AC coil from 2006. Also upon inspection found gas company had already shut system down due to improper sediment trap. Upon system inspection found that the outdoor contactor is bad, the outdoor capacitor is bad, causing compressor not to start up, also upon testing compressor, compressor test weak. Upon inspection of the inside system found that the furnace control board is throwing code for which indicates for high high limit open. Upon testing all limits, which is found no limits open. The control board is stuck throwing the code. System also has bad indoor capacitor for blower motor, blower wheel has large amount to build up. Indoor coil also has buildup. System has no wet switch That is TE standard. Also perform brief inspection over upstairs system upstairs system is also from 2006 gas furnace. System only has a 16° delta T(Delta t is the temperature split from