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GE Profile Harmony gas dryer intermittenet heat


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12 replies to this topic

#1 fjrdc

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Posted 03 June 2013 - 08:52 PM

Hi, I have a GE Harmony Dryer (DPGT750GC0WW) that starts normally ,the burner will  start after 30 seconds, runs for 30-45 seconds and shut off.

The diagnostic screen shows no errors , took apart dryer tested all sensors all are within  the paramaters in the TSM.

Went to the factory test screen everything seems to be correct , I am at a loss any help  would be appreciated !!



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#2 RegUS_PatOff

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Posted 03 June 2013 - 09:18 PM

how's the Vent system ?


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#3 Samurai Appliance Repair Man

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Posted 03 June 2013 - 09:18 PM

Disconnect the vent from the back of the dryer ans try it again. Let us know.

#4 fjrdc

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Posted 04 June 2013 - 07:01 PM

Disconnected dryer vent ( I didn't mention that I cleaned out the whole vent system, 2 elbows & a 4ft run of pipe) ran dryer , in factory test mode blower ramped up to 2,000 -2,100 rpm after 25-35 seconds after 45 seconds flame sensor came on and within 10 seconds you could hear the burner start and the info screen  shows "heating" --ok . 

All points say "OK"



#5 RegUS_PatOff

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Posted 04 June 2013 - 07:09 PM

 

... info screen  shows "heating" --ok . 

All points say "OK"

"Life's good"

GE Harmony . . . made by LG    :whistling:


.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#6 fjrdc

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Posted 04 June 2013 - 07:11 PM

After heating for about 2 1/2- 3 min heater went off, dryer still running, flame sensor says "ON"  inlet THD peaked at 438 F and inlet THD 110



#7 fjrdc

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Posted 04 June 2013 - 07:15 PM

I know! , Six years ago they hadn't developed their reputation by then



#8 RegUS_PatOff

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Posted 04 June 2013 - 07:20 PM

Dryer Vent 4" diameter

Vent should be rigid metal.
Short lengths of flexible metal may be OK, if not crimped when moving the Dryer into place.
NO plastic
NO PVC
NO screws
Foil Duct Tape is OK.
With an empty load, Timed Dry, High Heat, the vent temperature should cycle somewhere between 135F and 160F
Check / clean the Dryer Vent
Disconnect the Dryer Vent and check for good air-flow there and where it exits the house.
Check the Vent air temperature at the back of the Dryer.

If you have a Harbor Freight Store near you,
 $ 3.99 sometimes on sale for $ 2.99
image_1255.jpg




 

.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#9 Samurai Appliance Repair Man

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Posted 04 June 2013 - 07:42 PM

Disconnected dryer vent ( I didn't mention that I cleaned out the whole vent system, 2 elbows & a 4ft run of pipe) ran dryer , in factory test mode blower ramped up to 2,000 -2,100 rpm after 25-35 seconds after 45 seconds flame sensor came on and within 10 seconds you could hear the burner start and the info screen  shows "heating" --ok . 

All points say "OK"

 

 

So... it heated normally with the vent hose disconnected?  



#10 fjrdc

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Posted 05 June 2013 - 06:41 PM

It heated for approxamtely 3 min. and heat kicked off  ,dryer continuied to run no heat, after 8-10 min heat kicked back on ...



#11 RegUS_PatOff

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Posted 05 June 2013 - 07:30 PM

has this Dryer worked OK up till now at this location ?

Dryer is now fully re-assembled ?


.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#12 fjrdc

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Posted 05 June 2013 - 10:02 PM

Yes, 6 years , fully assembled except for ventpipe.



#13 Samurai Appliance Repair Man

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Posted 06 June 2013 - 05:50 AM

If that blower motor runs intermittently, this will cause the flame to stop.  Is the blower motor running the entire time?

 

Also, check to see if the liner valve and both the other DC valves on the gas valve assembly are continuously getting 12vdc.  Can check this at CN16 on the main PCB.  Refer to the mini-manual/tech sheet for details.  






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