Hello everyone,
Today i was lucky enough to pull a motor out of a tumble dryer but I've hit a snag.
I have no idea how to hook it up to power the diagram makes no sense to me.
any help would be appreciated.

kind regards,
Jordan

 

hi 8,
Welcome to AAC,
Do you also have the 9uF capacitor that was attached to the motor.??

E

 

Once you confirm the cap, it would be the top and bottom connection for AC in, the yellow is for the cap.
Don't forget the earth ground to frame.
Max.

 

Yeah the cap is there, what do you mean by the yellow is the cap?? Where should that be wired in too??

 

Yeah the cap is there, what do you mean by the yellow is the cap?? Where should that be wired in too??

See post # 2, Eric spelled it out for you on your picture.

 

That cap is there, all wired in still too

 

So you are all set to go!
Max.

 

So you are all set to go!
Max.

Oh I didn't see the picture! That makes more sence now, but where should the yellow wire terminate, it seems like it needs to be connected to something

 

The capacitor.
Max.

 

Okay so I was a bit confused with the diagram, and the reason that I was is because the capacitor wire had a crimp connector with one wire going to the motor and another wire going to back to the PCB. Obviously the motor works fine with your awesome diagram Max, I appreciate your help!

 

It is possible that the motor is reversible by connecting the neutral to to the yellow instead of the blue. This will only work if the two windings are identical. Measure the resistance between the bottom terminal (Marked Cambridge blue) and the blue wire. Measure the resistance between the bottom terminal and the yellow wire. If these resistance values are the same the motor can probably be reversed as I suggested. If you try this then first measure the current the motor takes as it is connected in the diagram. Then measure the current it takes when connected to run in the other direction. The two current readings should be about the same.

Les.

 

hi J8,
A cautionary note, ensure that the motor is held securely to a solid base, before powering it up.
If it is left free to move, say a bench surface, the motor will momentarily try to roll in the opposite direction of normal rotation at power up and may finish up on the floor.

E

 

Good advice Eric.

Les.

 

It is possible that the motor is reversible by connecting the neutral to to the yellow instead of the blue. This will only work if the two windings are identical. Measure the resistance between the bottom terminal (Marked Cambridge blue) and the blue wire. Measure the resistance between the bottom terminal and the yellow wire. If these resistance values are the same the motor can probably be reversed as I suggested. If you try this then first measure the current the motor takes as it is connected in the diagram. Then measure the current it takes when connected to run in the other direction. The two current readings should be about the same.

Les.

Oh of course! A dryer needs to spin in both directions to dry cloths properly. It would have to have some method of reversing the motor to achive that

 

Oh I didn't see the picture! That makes more sence now, but where should the yellow wire terminate, it seems like it needs to be connected to something

The capacitor connects between the yellow wire and the blue wire. Then the line connection goes to the remaining wire that is NOT GREEN. AND certainly do restrain the motor because it will want to roll over when you start it. And for rotation in the opposite direction move the line connection from the blue wire to the yellow wire.

 

The capacitor connects between the yellow wire and the blue wire. Then the line connection goes to the remaining wire . And for rotation in the opposite direction move the line connection from the blue wire to the yellow wire.

I think Les already covered that in #11.!
Most W.M. motors are PSC motors where the two stator coils are equal.
Max.

 

I've never heard of a dryer that runs in both directions. Not saying they don't exist, just I've never heard of one. A washing machine ? ? ? Yes ! But a dryer ? ? ? I'm not convinced of that.

Dish washer motor? Yes, both directions because the pump does one thing in one direction and another in the other direction. One way washes the dishes and the other way drains the tub. But now a days they have separate drain pumps for dish washers. Still, a dryer, as far as I know, only runs in one direction.

G-nite all!

 

I've never heard of a dryer that runs in both directions. Not saying they don't exist, just I've never heard of one. A washing machine ? ? ? Yes ! But a dryer ? ? ? I'm not convinced of that.

Dish washer motor? Yes, both directions because the pump does one thing in one direction and another in the other direction. One way washes the dishes and the other way drains the tub. But now a days they have separate drain pumps for dish washers. Still, a dryer, as far as I know, only runs in one direction.

G-nite all!

Could be the case but if it only ran in one direction then i don't believe you would get as dry cloths. Also supported by the fact that the impeller is bi-directional and pushes all air to one spot. maybe its an Australian thing to have dryers run in both directions?

 

Running in both directions is commonplace and makes sense. It helps to untangle the clothes. Ours (White Knight) is a reverse-tumble type.

 

It helps to untangle the clothes.

OK, that makes sense. Especially when I dry the sheets and have to unwind them so the drying air can reach what is otherwise twisted up and still damp in the middle. Or run the dryer longer and end up with fabrics that smell like they've been slightly singed. Stayed at a hotel that dried their sheets on very high temps. The sheet always smelled like burnt toast. HATED it!. Sadly, my dryer is fairly new. It will be a long time before I replace it. But when I do I will certainly look over the market for one that reverses. The wife will think I'm a genius. I said "Think"!