Heating & AC part descriptions:
G - Z
Heater Blower Motor
The heater blower motor is a fan that pushes air through the heater core or air conditioning condenser into the car’s interior. It operates at different speeds to provide the right amount of heating or cooling based on weather conditions.
Heater Blower Motor Resistor
The heater blower motor resistor is an electrical component that controls fan speeds in a vehicle’s ventilation system. It allows the fan to operate at different speeds by regulating power flow. Signs of a faulty resistor include inconsistent fan operation, smoke from vents, or the fan only working at certain speeds.
Heater Control Valve
The heater control valve regulates the flow of hot coolant from the engine to the heater core, controlling the amount of heat entering the car’s interior. It’s crucial for maintaining comfortable temperatures and clearing windows during cold weather. Symptoms of a faulty valve include no heat output, constant heat, erratic operation, coolant leaks, and potential engine overheating.
Heater Core
The heater core is a component of a vehicle’s cooling system, located in the dashboard. It circulates hot coolant from the engine to provide warmth inside the car. When functioning properly, it allows precise control of interior temperature for heating and defrosting.
Heater Hose
Heater hoses transport hot coolant between the engine and heater core, enabling interior warming and window defogging. Made of flexible rubber, these hoses can develop issues that may lead to coolant leaks, overheating, or lack of cabin heat.