1956 Filtrator Dryer

[frigidaireguy]

 I'm having a problem with my '56 Filtrator dryer. First off I have to give the drum a "boost" before the motor will start.  It now starts and runs for 5 to 7 minutes and shuts off.  What would cause this and what should I do to correct it.  Thanks for any help.

 

Bob

 

[combo52]

Hi Bob, You need another motor, it might be repairable with a new start switch, but it might have other issues.

Good News is any FD Filtrator dryer motor will fit your machine from 1952-1960.

John L.

 

[sfh074]

Starting Cap ...

Replace the starting cap first. This can cause this very issue and is a cheap test. Besides if you end up replacing the motor, replacing the start cap is a good idea at the same time. Check the centrifugal start switch for proper operation. Also check wire connections everywhere associated with the motor for corrosion.

 

[combo52]

Replace The Starting Capacitor first ?

Not a bad suggestion, BUT no GM FD dryer ever had a Motor Starting Capacitor.

 

John L.

 

[sfh074]

Well heck .....

No cap. So they used a secondary field winding 90 degrees out of phase to the primary for starting. I remember playing with one of these kind of motors in engineering school back in the 80's. I always wondered why they would go with another added winding and a start switch vs just a cap.

 

[combo52]

Most US Home Laundry Motors Are Split-phase Induction Motors

They use a separate start winding usually controlled by a centrifugal start switch with some using a magnetic relay.

 

They use this type of motor for its high starting torque, they are also reliable and quiet running, major down side is very high current consumption.

 

90% of AWs, dryers and even wringer washers built over the last 80+ years use this type of motor, maybe about 10% also had an added start capacitor to add even a little more starting torque.

 

John L.

 

[frigidaireguy]

John / Bud:

Thanks for your input Can this motor be re-wound ???