Question about LG DLG5988 Stainless Steel Gas Dryer

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Ignitor will lid for a few seconds

DLG5966W ignitor will lid for a few seconds and the gas wont kick in then the ignitor turns off

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This is commonly caused by a weak igniter. Over time, the igniter wears out and does not draw enough current to open the gas safety valve on the burner assembly. This is a designed safety feature that prevents free-flowing gas from entering the dryer cabinet without ignition. The following link explains how these igniters work:

I know the link is for a gas range, but the types of igniters and theory of operation is still the same. In effect, your igniter may have the appearance of working correctly by glowing, but it may be too weak for ignition to occur. I would recommend you try replacing the igniter.

If you have quesitons, or require additional assistance, please let me know before you rate the solution. I hope this helps you.

Posted on Jan 28, 2009

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Continuity is great but did they perform an ampere test on the ignitor while the ignitor was hooked up inside the unit? An ignitor typically draws between 3 and 3.3 amperes any less then this would constitute a weak ignitor and the ignitor should be replaced if it is weak because it takes much longer to ignite the gas inside a dryer. An ignitor would always show conductivity except if the element were broken. So to start with wrong test was performed. Secondly there are also run thermistors and hi and low limit thermistors that act as relays that can also be checked in dryers by performing continuity tests on these thermistors click this link this is one of the schematics to your dryer k 550 is a thermistor and k 560 is a thermostat both should be tested as mentioned above. M 110 is the gas vavle which on other units the coil is replaceable but is only sold along with the valve on an LG which also has to be tested that power is going to the solenoid on top of the valve and that it is going to the ignitor. If you have any further questions message me back. I await your reply as to any further questions as well as your finds as well. Thanks again

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The areas that come to mind is the ignitor and/or sensor has gone bad The most unlikely is the gas valve but it is a possibility. I check for a thermal fuse on your model It does not come with one. That eliminated another cause.

Attached is a picture for reference.

When the dryer is turned on, the ignitor ( #74) will start to glow and in a few seconds to a bright orange color. The sensor ( #79) which is located on the outside of the flame tube, detects the heat intensity from the ignitor. Once the ignitor has reached its limit when operating correctly, the sensor will give a signal for the gas valve to open and release gas through the burner where the ignitor will light the gas. This process repeats several times when drying a load.

Defective ignitors will either have no glow or the will glow a little bit.

Hope this helps you out.
Always you caution when working on appliances.

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your pilot need to be check , most likely it is old and need to be change.
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if your gas supplay is good then thats your problem the ignitor (pilot) good luck

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