Defroster/defogger/hvac System Fan/motor Resistor/speed Control problems of the 2019 Chevrolet Trax

The contact owns a 2019 Chevrolet Trax. The contact smelled an abnormal burning odor and became aware that the a/c unit failed to operate past level 4. The vehicle was taken to an independent mechanic, who diagnosed that the connector for the a/c unit had failed and needed to be replaced. The independent mechanic became aware that the wire for the a/c unit was burned, causing the a/c unit to malfunction. The a/c resistor, connector, and a/c blower motor were replaced. The contact stated that the resistor and connector had been burned 3 times and needed to be replaced again. The failure persisted, and the a/c unit continued releasing the burning odor. The manufacturer was informed of the failure and opened a case. The manufacturer referred the contact to the dealer for assistance. The failure mileage was 71,200.