Weird dryer problem

Hi,
I have a Whirlpool dryer LER5848EQ5 inside the house, with the vent going up the wall, into the attic, and then out of a vent on the roof. The portion of pipe in the attic has a concave bend to it at one point creating a low spot.
Recently, we started noticing that the dryer would quit before drying. I'd restart it and it would sometimes immediately shut off, or sometimes go the full cycle without stopping. Cycles were getting longer when they completed, and no more lint was on the lint screen.
I checked the screen on the roof vent and it was not clogged. So I started the dryer in fluff air mode (no heat), and went into the attic. I heard gurgguling sounds in the line where it had the low concave bend. The line there was full of water.
I removed the pipe from the roof vent and drained it. Lots of water and lint came out. I then hooked a leaf blower up at the dryer side of the vent and blew the line clean.
Now the dryer is drying clothes much faster than ever, and the lint filter always has lint in it. However, occasionally - like every 8th cycle, the dryer stops before completing the cycle. I've checked the line again, blown it out again, etc. but it shows no signs of being clogged. Possibly before, when the line was clogged, I damamged a heat sensor, but I don't know how to verify this.
Suggestions please.
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I had a similar problem with condensation in my dryer duct that passes through the attic. I insulated it with duct wrap and the condensation stopped. Just blowing out the duct is not a sufficient cleaning. You need to use a brush like the Lint Eater to scrub the inside of the duct all the way through. I don't know if that is what is preventing your dryer from cycling, but it is a good possibility.
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http://fixitnow.com/wp/category/dryer-repair /
http://www.repairclinic.com/0047_8.asp
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On 9 Feb 2006 09:02:00 -0800, snipped-for-privacy@hboi.edu wrote:

You have a lint demon. Do not let your children go into the attic.

It seems to me that a heat sensor would make the dryer stop when it got too hot. Yours is stopping. I don't know if it is stopping because it is too hot, but a failed heat sensor would let it continue even if it were too hot, right?
That's my logic. What is your logic to suggest it might be a failed heat sensor?

Remove NOPSAM to email me. Please let me know if you have posted also.
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you need a shorter vent line, long ones like yours can be a fire hazard. you can add a extra fan to help exhaust but a shorter line is prefered
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snipped-for-privacy@aol.com wrote:

The vent should measure no more than 25 feet with each 90 degree elbow counting as 5 feet and each 45 degree elbow counting as 2.5 feet. An extra exhaust fan should not be necessary. Exhaust vents get clogged often and require more maintenance. The leaf blower is not enough to clean out the dryer vent. You need a brush to scrape off the lint. Also it sounds like there is a dent in the line. This section needs to be replaced. Try http://CleanYourOwnDryerVent.com /
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