Two system AC cool check completed on horizontal straight cool Carrier systems. Both drain lines were cleared and treated. Both condensing coils were cleaned. I found both blower wheels are dirty. I found both indoor torque boosters are below manufacturer specs. I also found one outdoor torque booster below manufacturer specs. I presented options for repair to the homeowner and he chose to replace three of his four torque boosters today. I completed the repairs and cycled both systems on to verify proper operation. No other major issues were found. The systems are working at completion of service.