In Phoenix, AZ: DIAGNOSTIC- Customer had a power surge on the building; found power to the air handler, but no 24 volt power. Upon further inspection, found that transformer had blown system; system will need a new 208 volt transformer. I tried to start system and found a grounded 3 pole contactor; installation of new contactor is all running within factory specifications. Warranty is not valid for a power surge. I informed customer that warranty is for failure due to manufacturing issues only. Service is complete.
