Author Topic: GE Harmony GAS DPGT750GC - No Power but 120V  (Read 5279 times)

Offline thadden71

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GE Harmony GAS DPGT750GC - No Power but 120V
« on: July 16, 2009, 09:41:03 PM »
So, the unit had no heat.  Took it all apart, cleaned out the lint vents, etc.  Fired her up, all worked, blower motor, coil fired, gas fired, then POOF!  It all shutdown.  I thought I blew the circuit, but lights on in the laundry room, etc.  Also tested the socket.  Working.  So, something in the dryer was not happy.  Now I have 120V all throughout, but the control panel is blank and buttons unresponsive.  Is there something that may have shorted or blown (fuse) that could cut the entire power to the dryer?  I don't see how running it for about 1 minute with the door off could blow the computer.  Looking for help!

Model DPGT750GC1PL

Offline Repair-man

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #1 on: July 17, 2009, 06:16:50 AM »
So you ran the dryer with the door off.  It most likely caused the thermal fuse to open. get your OHM meter back out and check it.  You also need new gas coils on the valve if it heated briefly for you.  The valve likely would not have opened the next time had it been allowed to run with the door properly attached.



« Last Edit: July 17, 2009, 07:10:11 AM by Repair-man »
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Offline thadden71

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #2 on: July 17, 2009, 10:00:34 AM »
Hey thank you for the quick reply.  So if the thermal fuse blows, it can cause complete power outage?  So the white wire is a loop through the machine.  if the thermal fuse breaks than the power is cut throughout? 
So in theory, one could jumper the thermal fuse to test that?  Or is that not a recommended move?

Offline JWWebster

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #3 on: July 17, 2009, 11:17:47 AM »
I bet you have to reset the machine somehow. OK unplug the dryer. then plug it back in and reset to dryer to the beginning of a cycle. shut the door and restart.
« Last Edit: July 17, 2009, 11:21:53 AM by JWWebster »
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Offline thadden71

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #4 on: July 17, 2009, 11:38:39 AM »
Gents.  Thanks for your replies and ideas.  I figured there was an electrical break somewhere, as there was no power going to the computer.  So, I found all of my white and black lines and tested all of the areas they were connected for continuity.  There is the INlet Safety Thermostat (#756 on the chart) which is attached to the bottom of the flame tube.  This has a little red popout button on it, which is popped out, i am assuming htis means it tripped.  So, I mated the wires, and supported the drum rotater and completed the circuit as there is a switch on the wheel that cuts power if it is released (most likely for if the drum belt brakes).  Now I have power and one bad thermostat.  Thanks again.

Offline RegUS_PatOff

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #5 on: July 17, 2009, 12:20:30 PM »
did you try and push the red button (reset)
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Offline thadden71

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #6 on: July 17, 2009, 01:03:03 PM »
Funny you should mention that.  I pulled it out and tested for continuity.  it was fine too.  the break in the circuit was coming from the switch that triggers when the pully lever is released due to no belt.  nice safety feature.  but a real stumper for the first time dryer repair. 
I ended up just turning my last screw and throwing in a towel.  Not the proverbial "towel" but a mildly wet one.  5 minutes later it is toasty warm. 
So, I think my original issue was a severely clogged vent pipe right at the blower.  By running the unit with the door off, it triggered the input thermal sensor to trip cutting the power.  I took the drum out to get a better look, which now i know will also cut the circuit due to a safety switch.  But, now i can pretty much pull my entire dryer apart if i get the urge to do so.
Oh and the other lesson i learned was to make sure i pull the power cord before walking away and coming back to touch a nice wire.  YOW!
Thanks again for all the fast replies!

Offline RegUS_PatOff

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #7 on: July 17, 2009, 01:39:27 PM »
because of air-flow issues,
never test a Dryer unless fully assembled

LG  GE Harmony Dryer Service Manual
http://www.affordableappliance.com/Download%20Folder/GE_Harmony_Dryer.pdf  15 MB
« Last Edit: July 17, 2009, 01:41:47 PM by RegUS_PatOff »
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Offline thadden71

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #8 on: July 17, 2009, 01:47:15 PM »
roger that.  never test unless fully assembled.  never touch black if plugged in (actually i knew this. just forgot to look).  ah the complete education!

Offline JWWebster

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #9 on: July 17, 2009, 01:51:14 PM »
So let me get this straight. You found a themostat with a red reset button on it on the burner housing?
You also didn't say you were testing the machine with the front panel and drum removed. They call that the sin of omission. We cannot tell you what to look for if you leave out the details amigo. Glad you got er going!
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Offline RegUS_PatOff

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #10 on: July 17, 2009, 02:30:46 PM »
... Took it all apart, cleaned out the lint vents, etc.  Fired her up, all worked, blower motor, coil fired, gas fired, then POOF!  It all shutdown....  
he didn't say he put it back together ..

(some have black buttons)

« Last Edit: July 17, 2009, 02:32:55 PM by RegUS_PatOff »
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Offline JWWebster

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #11 on: July 17, 2009, 03:05:23 PM »
What is the part number and temp range for that jewel?
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Offline Repair-man

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #12 on: July 17, 2009, 04:16:04 PM »
What is the part number and temp range for that jewel?

Its in the manual,speedy  :)


Last part I found was WE04X10119
« Last Edit: July 17, 2009, 04:20:21 PM by Repair-man »
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Offline RegUS_PatOff

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #13 on: July 17, 2009, 05:17:13 PM »
I couldn't find a picture of the GE WE04X10119  $ 32

the picture I posted was from an LG $ 12

6931EL3003C  BLACK BUTTON
6931EL3003F  RED BUTTON

Open at 212 12F   (100 7C)
Manual reset


There also may be a "Open at 230 12F (110  7C)  Manual reset"  model

I think some LG models now use an "Automatic Reset" Thermostat in that location



High Limit Thermostat Part # 6931EL3003C


« Last Edit: July 17, 2009, 05:21:36 PM by RegUS_PatOff »
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Offline JWWebster

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Re: GE Harmony GAS DPGT750GC - No Power but 120V
« Reply #14 on: July 17, 2009, 06:13:27 PM »
I could probably get that one from QB products for $4
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        never grow rusty.

About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair and other general BS I love to post. The letter sends me email.
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