How do you unplug a blower motor?
Using a test light or a multimeter set on volts, unplug the blower motor. Keeping the black lead on a good ground, usually a bolt on the engine block, and the blower switch turned on, use the red lead to probe the plug that usually attaches to the blower motor.
What should I do if my blower fan is not turning?
Repair the connector. If the motor still does not turn, the motor is bad. Replace the motor. Test the switch. Plug the connector back in to the blower motor, and then trace the wire harness back to the connector closest to the blower motor switch, usually located under the dash. Disconnect the connector and set the multimeter to ohms.
What should the voltage be on a blower fan?
Keeping the black lead on a good ground, usually a bolt on the engine block, and the blower switch turned on, use the red lead to probe the plug that usually attaches to the blower motor. The meter should read between 9 and 11 volts or the test light will light up. If the voltage is right or the test light illuminates, go to Step 3.
Why does my RV converter fan only run when plugged in?
It is necessary to have the 120-volt power on because the fan in the converter is a 120-volt item; this is why it can only be heard running when the RV is plugged in to shore power or an operating generator. Test the thermostat/temperature sensor unit which controls the fan by blowing heat onto the heat sink using a hair dryer or a shrink-wrap gun.
Why is my blower motor on my Ranger not working?
I recently experienced a problem where the blower motor in my 1996 Ranger quit working. When working with your blower motor you have to first understand that the blower basically works in the opposite manner of most automotive electrical components. Normally you switch on a positive current to an electrical component to turn it on.
What does it mean when a blower motor does not turn?
Changes in voltage indicate that the resistor is working and that the switch is able to vary the speed of the blower. If there is voltage but the motor doesn’t turn, disconnect the plug and connect one of the motor’s terminals to a good ground and the other to a 12-volt fused source. The motor should spin at its highest setting.
How do you check the fuse on a blower motor?
First check the fuse and all connections. Second, check to see if there is any power at the blower motor. Place two large straight pins in the plug of the blower motor but leave the blower motor plugged in. Place a voltmeter across the two pins.
What is the relay for a blower motor?
The large relay on the right is for the blower motor. The lid comes off by pushing in each end of the lid to release the clips. This is the relay that was in my Ranger. The rust on the terminals was keeping it from making connection.