Where is the blower motor switch?
The blower motor is the electrical switch on the interior of a vehicle that allows the driver to control the vehicle’s heating and air conditioning system. It is usually built into the the same control panel that houses all of the AC system controls, and is labeled with numbers and symbols to indicate blower fan speed.
How do you change a blower motor relay?
How to Change the Blower Motor Relay
- Locate your vehicle’s blower motor relay.
- Open the glove box and empty its contents.
- Locate the two tabs on each side of the open glove box and push them in.
- Remove the relay motor’s door panel by removing the two screws that hold it in place with a screwdriver.
What is a blower motor switch?
What Is the Blower Control Switch? The blower control switch is an electrical switch that is used to control the speed of the fan in the heating and air conditioning system of a vehicle. It works with the blower motor to deliver the right temperature and air flow needed to cool down or heat up the inside of a car.
How do you test a blower switch?
Place one lead of the Ohmmeter on terminal 1 of the resistor. Place the other lead on terminal 2 and check against specifications. If this circuit is open, showing infinity on the Ohmmeter, the blower resistor must be replaced.
How to replace AC / heat blower control switch?
Disconnect the A/C-heater function selector switch connector. Remove the A/C-heater function selector switch. Remove the screw. Remove the A/C-heater function selector switch. Disconnect the temperature control switch connector. Remove the temperature control switch. Remove the screw. Remove the temperature control switch.
What should I do if my heater fan switch is not working?
As long as there are no bare wires exposed, reconnect the battery cable and try running the heater fan to see if there is other diagnostic work to be done. If everything checks out, disconnect the battery again, route the switch back through the hole, and attach it with the nut.
How to replace a heater motor switch or relay?
Step 1: Replace the switch. At this point you should have the switch in a position to easily disconnect it. Be careful, there are usually locking tabs on the connector that have to be squeezed before it will release and pull off. The plastic connectors are brittle and break easily.
What happens when you change the fuse on a heater blower?
If the fuse is blown, replace it and then try the blower. If the fuse blows right away, your car may have a bad blower motor or some other problem in the system. If the blower works when you change the fuse, you may not be out of the woods yet. When the motor gets old and tired it will draw more current through the wires than a new motor.