Blower Fan Motor Not Working

Power supplied from the fuse panel.

Blower fan motor not working.

You should be able to find this relay or sequencer by tracing the blower motor wires back to the relay or sequencer. If the thermostat does not have continuity replace it. If both the compressor and the fan motor won t run use a multimeter to test the temperature control thermostat for continuity. Connect the red lead to a power source and then to the leads on the motor side of the disconnected connector.

If the motor still does not turn the motor is bad. I went ahead and replaced the blower motor resistor and cabin air filter but it is still completely dead. If there is a battery check if it is working properly. If you are getting 24 volts between g and c then you probably have a fan relay problem or sequencer problem.

This can be annoying but troubleshooting is easy. I don t think it is the fuse. If no voltage is recorded you will have to replace the board or the relay. Connect the black lead to a ground and then to the blower motor assembly.

It doesn t work on any speed. One of the most common problems with furnace fans is a bad blower relay. If you start at the blower motor and check resistance in the circuit you will find the problem in no time. Some of the heat pumps with electric heat control the blower using a sequencer.

This is another common reason behind faulty. If the motor turns the connector is bad. Many hvac related calls are due to the blower motor not working. If the compressor is running but the fan motor is not running the fan motor or the fan motor capacitor are likely at fault.

The blower motor is crucial to the proper function and operation of your hvac system. The first thing to do is check the relay or voltage from the board.