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 found the hydronic system had not been flushed in over 10 years. Tech advised flushing the system. Both the hydronic and domestic side. Tech quoted work client approved. tech flush hydronic side with boiler cleaner and then flushed the domestic side with descaling solution. Flush both side for 45 minutes. And then flushed both side with fresh water. Tested boiler working well. 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 working well Torque booster is starting to weaken this provides adequate power to the compressor and fan. System is just above manufacturing m