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Thread: GDF520PSF4SS GE Dishwasher fills with water but won't spray or move arms

  1. #1
    Join Date
    Apr 2019
    Location
    Austin, TX
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    Default GDF520PSF4SS GE Dishwasher fills with water but won't spray or move arms

    Model Number: GDF520PSF4SS
    Brand: GE
    Age: 1-5 years

    Hello,

    I'm having a problem with my dishwasher I was hoping someone might be able to help me with.

    Currently, it will fill with water and then just sit there, it seems to heat up, the soap door opens and it leaks down the door. then it drains and does it's heat dry stage. but the arms never spray any water or anything.

    so far i've checked and cleaned the float switch, the arms, all the filters. I replaced a faulty water inlet valve, and removed the motor and cleaned some hair out of the impeller blade thing. i checked the amps on it and it seemed fine. i think it was about 1250. (sorry, i'm not great at this mechanical stuff).
    occasionally, after i turn off the power, take things apart and reassemble them, the dishwasher will sometimes work fine for one to two cycles. then the arms just stop working again.

    I feel like i've tried everything recommended online for this model so far, but i might have missed something.
    I was wondering if anyone had any suggestions or other steps i could maybe take.
    any help would be greatly appreciated.
    thank you very much!

    Jeff

  2. #2
    Join Date
    Oct 2004
    Location
    Ontario, Canada
    Posts
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    Default

    Hi,

    Currently, it will fill with water and then just sit there
    Wash motor running?

    but the arms never spray any water or anything.
    Wash motor running?
    Arms turn ok by hand and are not jamming/binding?

    the dishwasher will sometimes work fine for one to two cycles. then the arms just stop working again.
    When they stop....is the wash motor working, water level ok?

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid
    Yeah I've got O.C.D.....Old, Cranky and Dangerous.
    I thought my dryer was shrinking my clothing.....turns out is was the refrigerator!

  3. #3
    Join Date
    Apr 2019
    Location
    Austin, TX
    Posts
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    Default

    Hey Jeff,
    thanks for your quick response!

    I'm not entirely sure how to tell if the wash motor is running?
    but yes, the arms turn fine if i move them by hand. i also tried taking them out and running it with no arms, and no water came out of the holes where they attach.
    and the water level seems fine. it fills about an inch or two, to right below the heating element.

    it's like the next step in the wash cycle just isn't turning on after it fills with water.

  4. #4
    Join Date
    Oct 2004
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    Ontario, Canada
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    Default

    it fills about an inch or two, to right below the heating element
    That should be good.

    I'm not entirely sure how to tell if the wash motor is running?
    Can't hear it?
    Remove lower from panal for a better listen then?

    the arms turn fine if i move them by hand
    That should be good.

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid
    Yeah I've got O.C.D.....Old, Cranky and Dangerous.
    I thought my dryer was shrinking my clothing.....turns out is was the refrigerator!

  5. #5
    Join Date
    Apr 2019
    Location
    Austin, TX
    Posts
    5

    Default

    ok, yeah, once it fills with water, i don't hear anything.
    does that mean the motor's dead?

  6. #6
    Join Date
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    Default

    does that mean the motor's dead?
    If the motor is getting power but not running, yes bad motor.
    If not getting power when it should be running, control not sending power and likely bad.

    A couple of items we are now changing together for poor or no washing...

    Click image for larger version. 

Name:	ge-p1a-wash-pump-wd49x23778-ap6261801_01_m.jpg 
Views:	3 
Size:	37.9 KB 
ID:	42810 P1A Wash Pump

    Click image for larger version. 

Name:	ge-diverter-asm-kit-wd35x10386-ap5671709_01_m.jpg 
Views:	4 
Size:	31.7 KB 
ID:	42811 Diverter Asm Kit

    Remember you or someone else need to check for power to the wash motor before doing anything else.

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid
    Yeah I've got O.C.D.....Old, Cranky and Dangerous.
    I thought my dryer was shrinking my clothing.....turns out is was the refrigerator!

  7. #7
    Join Date
    Apr 2019
    Location
    Austin, TX
    Posts
    5

    Default

    Thanks man!
    what's the best way to check that power is getting to the motor?

  8. #8
    Join Date
    Oct 2004
    Location
    Ontario, Canada
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    Default

    Volt meter.

    Click image for larger version. 

Name:	Multimeter-DM10T-01816678.jpg 
Views:	5 
Size:	127.5 KB 
ID:	42817 Digital Multimeter is an economical solution to your everyday electrical & temperature measurement needs.

    Appears to only be 2 wires at the motor. 110-120 volts AC is normal.

    jeff.
    http://www.applianceaid.com/
    Appliance Repair Aid
    Yeah I've got O.C.D.....Old, Cranky and Dangerous.
    I thought my dryer was shrinking my clothing.....turns out is was the refrigerator!

  9. #9
    Join Date
    Apr 2019
    Location
    Austin, TX
    Posts
    5

    Default

    Hey man,

    sorry i haven't been able to get back to this for a few days.
    so to test the wires at the motor. should the dishwasher be plugged in? and do i need to have my multimeter set to any specific setting? (sorry, i've never tested for voltage before)

    Thanks!

  10. #10
    Join Date
    Oct 2004
    Location
    Ontario, Canada
    Posts
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    Default

    sorry, i've never tested for voltage before
    You might be best to call someone in...just to be safe.

    so to test the wires at the motor. should the dishwasher be plugged in?
    Yes.

    do i need to have my multimeter set to any specific setting?
    Enough to check 120 volts AC.

    jeff
    http://www.applianceaid.com/
    Appliance Repair Aid
    Yeah I've got O.C.D.....Old, Cranky and Dangerous.
    I thought my dryer was shrinking my clothing.....turns out is was the refrigerator!

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