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My Whirlpool Estate gas dryer will not heat up. I checked continuity on the two thermostats and they were both closed, and I replaced the gas coils but still no heat. Can you help me please?
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Not without a model number.
Eric
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Sorry for forgetting that. The model is TGDX640PQ0. Thank you
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Does the igniter work? Do you see glow from it? If not, check for 120vac to ground at thermal fuse (check on each blue wire) on blower housing. If not there, check at thermal cutoff on heater box.
Eric
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Yes, the igniter works well, glows but it doesn't light. I replaced the two coils and thought that would do it but it still didn't light. I tested everything for continuity and it was all good so I am baffled.
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Heat from igniter should cause flame sensor to open. This should cause secondary gas valve to open and remove power to igniter. Gas should be ignited by still hot igniter. Does igniter go out or stay on continuously? If it cycles on/off, then flame sensor is working, if not, it may be stuck closed.
Eric
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The igniter goes on and after maybe 10 seconds or a little more, it goes off and then the machine make a louder noise (can't explain that) and when the noise stops the igniter lights again and the same things happen again.
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Assuming you do have gas, sounds like the gas valve coils. Where did you get the replacements from? There are lots of junk coils on the market. You should only buy genuine Whirlpool FSP parts.
Eric
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Yes I did buy Whirlpool parts. This dryer was sitting for a while disconnected. Is there any chance something is blocking the gas from going through. I checked the line to the dryer and there is plenty of gas in that line. Where the gas flows through, is there anything there that can go bad or get clogged up. I was thinking maybe spiders could have built a nest inside that tube. I know I'm grasping but what do you think? And thanks for all your responses. I really appreciate it.
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Rank: Advanced Member
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It is possible that the gas valve is bad. You should hear a click at gas valve when dryer is first turned on. That is the primary valve solenoid kicking in. When the flame sensor opens due to heat from igniter, the secondary valve should also click when it opens. You say there is a noise when igniter goes off so don't know what that is about. Whirlpool 8318277 Valve, 60 Hz. (includes Pipe & Illus. NO.7) - AppliancePartsPros.comEric
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