Arrived to perform Heat tune up. Customer has no concerns. 1st floor Set thermostat call for heating. Observe indoor unit, air filter, electrical connection, condensate system, coils and performed temperature readings Return: 81.0* F Supply: 104.1* F Observe out door unit, service coils, electrical compartment, motors, refrigerate lines. Ac system operating ok at this time. Basement unit Observe indoor unit, air filter, electrical connection, condensate system, coils and performed temperature readings Return: 83.0* F Supply: 108.1* F 2nd floor Observe indoor unit, air filter, electrical connection, condensate system, coils and performed temperature readings. Return: 83.0* F Supply: 108.1* F Observe out door unit, service coils, electrical compartment, motors, refrigerate lines. I found bacteria covering the Blower and the evaporator coil. Recommended: Fujitsu anual services IMPORTANT. The customer explained to me that he is going to sell the house, so he is not interested in doing