GE Dryer, Model Number DPGT750EC1PL

[ancel1961]

I have a GE electric dryer, model number DPGT750EC1PL that is not heating and the blower motor is not turning on.

The heating element, high-limit thermostats, and cycling thermostat are all good, but the dryer dryer does not heat up.

After checking the element and thermostats for continuity, reassembling the dryer, turning it on, and checking the exhaust duct for heat, that's when I noticed that the blower motor was not operating.

The drive motor turns. The power outlet and cord are both good. I'm wondering if the problem is the dryer's control board.

Any help you guys can offer will be greatly appreciated.

[johntech]

The blower motor would be attached o the drive motor. If it is not turning you would need to find out why it is no longer attached and turning with the motor. As far as not heating goes Did you test that the machine is getting 240vac? If so and element and tstat are good the it could be a motor or control problem, what I do is pull the drum out and trace the wires from the element. One will go to the motor centrifugal switch the other will run to the control board. Disconnect one of them and make sure it is not touching anything and  leave the door switches connected but the door out of the way. If you have a belt switch prop the pulley up. Start the dryer and test for 120v on the wire you disconnected and on the element. Whichever one is missing the 120 is the problem.

[ancel1961]

Hi John,

This is model is one of those dryers where the blower has it's own motor separate from the drive motor.

The blower motor is part number WE17X10008

The drive motor is part number WE17X10007

The dryer is receiving 240 volts.

Thanks

[16345Ed]

Isn't there a centrifuge switch in that motor? Might be that guy. 

[ancel1961]

Hi Ed,

I did some more research on this dryer and found out that the heating element will not come on if the blower motor is not operating properly.

I checked the thermistors which plug into the blower motor and both were within specs.

Unfortunately, I'm looking at replacing the blower motor, and the least expensive one I could find cost $160.

Thanks for trying to help.

I appreciate it

 

[16345Ed]

I could be wrong but... The centrifuge switch is in the drum motor if this switch doesn't close L2 won't be sending power to elements. 

 

[johntech]

Sorry I pulled up the breakdown but did not notice the separate blower motor. If the blower motor is getting voltage but not turning and nothing is in caught in it then I would replace the blower motor.

[Chat_in_FL]

The blower motor is a DC, variable speed motor capable of operating at different speeds in response to changing air temperature and venting impedances. Below 1000 rpm, the dryer control turns the heater off.

 

Resistance of the motor windings can be measured at the 10-pin connector on the inverter board or at the motor.

 

The blower motor has an approximate resistance value of 14Ω between the following wires:

Yellow to Yellow

Red to Red

Blue to Blue

 

The remaining wires are a ground and feedback through the control for determining motor speed.