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Flame ignites a couple of times and then quits

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First off, this forum looks like a great place to get some good advice, so thanks in advance. I have

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Old 09-16-2009, 08:56 PM
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Default Flame ignites a couple of times and then quits
Model Number: LGR8648LW   Brand: Whirlpool   Age: 5 - 10 years   

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First off, this forum looks like a great place to get some good advice, so thanks in advance.

I have a gas dryer that seems to work for 1 or 2 heat cycles and then the heat quits working. When it quits working, you can hear the ignitor switch on and then you hear a low grinding noise.

I have taken it apart and if I let it sit for an hour. I turn it on and it works for 1 cycle. Really good flame. I wait for the next heat cycle, the ignitor glows very hot, but the grinding noise comes back and there is no flame.

I am thinking it is a bad gas valve,any thoughts?

Thanks,

Preston


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  #2 (permalink)  
Old 09-16-2009, 09:44 PM
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Default

The copper in the holding coil retains the most amps of the 2 coils. It gets hot and over time it will fail. Feel it. It gets warm opens and dies. Replace those 2 coils When the gas valve assembly is energized the flame sensor
flame sensor
mounted outside the burner chamber detects the heat from the ignitor. When the heat is very intense then the sensor shuts down the ignitor
Ignitor
and that frees up the power so that the coils can be fully energised and open the gas gates. The gas comes out and hits the red hot igniter and you have ignition. It stays on for maybe 2 or 3 minutes or until the control thermostat is satisfied and shuts down power to the gas valve assembly. So...
If your gas dryer has a good flame sensor and a good igniter AND the dryer will work some and quit, replace these:
Gas operator coils
part# 279834
The coils get hot and quit on these machines when they get a little age on them. It is aggrevating because it is a hard to diagnose thing. But well worth the 20 bucks.
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  #3 (permalink)  
Old 09-24-2009, 10:03 AM
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Default Thank You

Thanks for your help. I replaced the coils and everything works great (much cheaper than replacing the entire valve assembly)

Preston
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