No heat. Check and find heating system lock out due to overheating. Test and find blower motor capacitor bad, find flame safety weak and worn, ignition white and cracking, and blower wheel not balance and dirty. Find furnace control also not operating properly. Due to system age and poor conditions of heating system suggest to customer to upgrade heating system. Repalce filter. Give customer estimate and customer will call cci back . System off at this time
