Tech came out to perform boiler maintenance inspection. Tech tested glycol levels, pump amperage, cleaned condensate trap, checked for error codes,Tested exhaust motors, tested gas pressure, check air separated, check cross connection Tech advised performing a flush of the system as we can’t confirm when the last time it was done. Tech informed client and work was approved. Tech flush the system. System working well at this time. Tech came out today to perform annual AC inspection. Tech tested torque booster limits, amperage on both compressor and out door fan motor, tested air flow and refrigerant levels. Inspected electrical components for corrosion. System is non functional at this time. Ac system has a major leak tech suspects the condenser coil it’s self has fail due to a large oil stain on the condenser fins. Tech informed client and she will have the original installers come back. Tech turned off the ac disconnect and the ac breaker at this time.