Customer called about no heat from gas fired boiler. Master service technician arrived and found boiler locked out on error E-28, blower not running. Verified high voltage power to blower and tested blower, it will not run. Customer approved replacement of blower. Obtained new draft blower and auto vent for water heater from supply house. Replaced draft blower, tested boiler, operation good. Verified heating loop is heating up and fan coil units are heating. Replaced water heater auto vent. Recommend boiler have seasonal maintenance performed. Customer will recommend Advanced Heating & Cooling to all of his friends and family.