GMC Canyon AC resistor shorting out after replacement on GMC Canyon

Some GMC Canyon owners report experiencing issues with the AC resistor shorting out after replacement. These problems may stem from a faulty blower motor, which can create extra resistance due to a seized bearing, leading to resistor burnout. Wiring issues, such as melted connectors or poor grounding, are also common contributors to resistor failure. Additionally, other HVAC system components may impact the resistor's functionality. Owners are advised to check the condition of the blower motor and inspect wiring connections for potential faults. If necessary, replacing the blower motor and any damaged wiring components can help resolve the issue. For persistent problems, consulting a qualified mechanic or HVAC technician is recommended to ensure effective diagnosis and repair.