Customer concerned about unit not turning off the blower motor. Checked the thermostat calibration and thermostat settings. I have checked the low voltage wiring and checked the surge protector the unit. The blower motor is confirmed to be running all the time. The blower motor with module is bad and needs to be replaced with oem motor. Checked the condition of the air handler unit and inspected evaporator coil condition. The evaporator coil is completely rusty and soon to fail and leak refrigerant. The unit has no warranty, installed November 2012 Air handler unit has bad rusty evaporator coil in the unit. The much rust on the evaporator coil is highly recommended to have unit replacement due to aged equipment and failure on components. Strongly recommend new unit replacement x2 upstairs and down stairs. Both units are same model and size outside condenser unit. Customer has been asked about new thermostat that is WiFi compatible. I have placed and estimate for new WiFi thermostat