AC / Blower Motor Relay

This relay is used in the blower motor circuit of 1967-69 Camaro models. Defective relays should be replaced to maintain proper operation of heating, ventilation, and air conditioning systems.

An AC/blower motor relay is an electrical component used in vehicles with air conditioning (AC) systems to control the operation of the blower motor. The blower motor is responsible for circulating air through the vehicle's heating, ventilation, and air conditioning (HVAC) system, which allows for controlling the temperature and air distribution inside the cabin.

Here are the key points about an AC/blower motor relay:

Function: The AC/blower motor relay acts as a switch that controls the power supply to the blower motor. When the AC or heating system is turned on, the relay receives a signal from the HVAC controls and activates the blower motor. This, in turn, causes air to be drawn into the HVAC system and pushed into the cabin through the vents.

Importance: The relay is important because it helps prevent the blower motor from constantly drawing power and running, even when the HVAC system is not in use. It ensures that the blower motor operates only when needed, improving energy efficiency and preventing unnecessary wear on the motor.

Location: The location of the AC/blower motor relay can vary depending on the make and model of the vehicle. It's often found in the fuse box or relay panel under the hood, in the engine compartment, or in the interior of the vehicle, typically on the driver's side. The vehicle's manual or a service manual can provide specific information on its location.

Relay Operation: Relays work by using a low-voltage electrical signal to control a higher-voltage circuit. When the HVAC controls signal the need for the blower motor to run, the relay's coil is energized, creating a magnetic field that closes the relay's switch contacts. This allows electrical current to flow to the blower motor, activating it.

Diagnosis and Replacement: If the blower motor isn't functioning properly, it's important to check the AC/blower motor relay as part of the troubleshooting process. If the relay is faulty, it can be replaced to restore the proper operation of the blower motor. It's recommended to use a relay that matches the specifications of the original or consult with a professional for guidance.

AC/blower motor relays are essential for the proper functioning of a vehicle's HVAC system. If you're experiencing issues with your AC or blower motor, it's a good idea to have the system inspected by a qualified mechanic who can diagnose the problem and determine whether the relay needs replacement.

Fitment:

1967-69 Camaro

1967-68 Firebird

1964-72 Truck

1961-69 & 1980-81 Chevrolet full size

1962-69 Nova

Also Fits:

Camaro: 1967, 1968, 1969
Corvette: 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969
Firebird: 1967, 1968
GM Truck: 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Impala: 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1980, 1981
Nova: 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969

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