Identify the type of motor and examine its nameplate information. Do the following with the motor disconnected.
3 Speed Blower Motor Wiring Help Doityourself Com Community
How to test a 3 speed fan motor. Place the leads of the ohm meter on the wires that run from the capacitor to the motor. Yellow has a medium speed label and blue has a low speed label. Reverse the leads on the capacitor. I have a bionaire brand table electric fan. Small fan motors last a long time due to few moving parts. I have no knowledge about motors.
Test the first set of wires. Now is the time to test the white brown and white wires. With a multimeter set to low ohms usually 200 test between each winding terminal and the metal casing of the motor. White wire has a high speed label. There are 4 wires connected to the motor coloured white yellow blue and black respectively. The motor has a 4mu 250volt capacitor.
If there is any reading on any of these then the motor is bad do not use it. Switch the volt meter to the ohm setting. This fan has an oscillating grill with independent sync motor and timer circuit. Count to three while the leads on the meter charge the capacitor. Sounds like you have a winding down to ground. Press and hold the switch for a minute.
Something was wrong with the solid state circuitry everything worked but the motor but a quick test of the motor indicated it does work. Take your multimeter and set it to ohms. The white wire is called the run wire. If it turns on you should be able to clearly hear the electric motor activate and then a low hum from the fan spinning. How to check an electric motor if it is bad. Ball bearings in motors can wear out without lubrication.
Check for mechanical binding or seized. It has a 3 speed fan motor. The electric motor is a bm 122 decomin brand 3 speed motor. There are 6 wires. This is the schematic from the manual of the fan which i salvage this motor from. Hope someone can enlighten me on the.
The freezer light should turn off and the evaporator fan should kick on after a few seconds. The type of. The motor uses. If the fan motor does not turn on while you hold the switch the motor is probably bad.
Gallery of How To Test A 3 Speed Fan Motor
