Dispatched to home goods store in Monrovia CA. Alarm panel was showing "trouble 3 smoke zone, roof duct AC4 and AC6". Inspected all six Lennox units on the roof. Repaired electrical short on unit #2. Unit #4 has defective Copeland scroll compressor. Unit #6 has shorted crank case heater. Reset fire panel alarm and cleared all trouble. Will return once quote is approved to complete all work.
