Author Topic: Gas Dryer - only heats at beginning of cycle  (Read 915 times)

Offline animateme

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Gas Dryer - only heats at beginning of cycle
« on: April 29, 2013, 10:53:08 AM »
Hello,
I have a gas dryer that only ignites the heat flame when the cycle has started but it does not ignite at all during the rest of the cycle. The igniter does light up but from what I see the gas valve is not opened up and therefore, no flame.
I removed and checked the Coils (solenoids) and based on these instructions ->  http://appliancejunk.com/blog/2010/01/22/how-to-test-dryer-gas-valve-coils/   , the coils are fine as they give the right Ohm readings.
I also checked the Flame Sensor and this does show continuity, so it seems to be fine.
If the Flame Sensor and the Coils are good, what else could be causing the flame to ignite only once at the beginning of the cycle but not afterwards?
Thanks in advance for any suggestions provided.
« Last Edit: April 29, 2013, 10:59:17 AM by animateme »

Offline LowSL2

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Re: Gas Dryer - only heats at beginning of cycle
« Reply #1 on: April 29, 2013, 11:43:30 AM »
I've had coils ohm out correctly, but will not activate the gas valve after the flame is ignited one time.  I usually replace the coils and it fixes the problem.  But, I'm sure someone else may have better advice....  :P
« Last Edit: April 29, 2013, 11:44:16 AM by LowSL2 »
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Offline R0ENIN

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Gas Dryer - only heats at beginning of cycle
« Reply #2 on: April 29, 2013, 11:50:03 AM »
Change the coils.

Offline schleven

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Re: Gas Dryer - only heats at beginning of cycle
« Reply #3 on: April 29, 2013, 10:27:12 PM »
Coils
If i get that symptom i change the coils. Fixes it every time.
« Last Edit: April 29, 2013, 10:28:26 PM by schleven »
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Offline animateme

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Re: Gas Dryer - only heats at beginning of cycle
« Reply #4 on: April 30, 2013, 11:26:31 AM »
Thanks for the reply.  I replaced the coils and that solved the problem.  So, from this, I can see that even though the coils measure the right Ohms, it does not necessarily mean that they are good.

Offline jumptrout51

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Re: Gas Dryer - only heats at beginning of cycle
« Reply #5 on: April 30, 2013, 02:49:49 PM »
Cold coils will usually ohm as OK.
When they get energized a few times the ohm value changes.
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Offline JWWebster

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Re: Gas Dryer - only heats at beginning of cycle
« Reply #6 on: April 30, 2013, 03:04:15 PM »
They get warm, they fail with a little age. Very hard to diagnose for a novice.
« Last Edit: April 30, 2013, 03:04:44 PM by JWWebster »
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