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No heat and will just keep running

I have a Whirlpool gas dryer (model LGR6620PT0). It's about 3-4 years old. It will run, but gives no heat at all. I took the back cover off to clean up lint, and it wasn't too bad. The dryer's timer will count down, but never complete. It seems stuck on the last minute and will just run forever. One other odd thing I noticed was that if I put the timer knob on a high heat setting, it feels as though the timer starts. This happens without even turning it on. No other setting causes the timer to act in this manner. If it's plugged in and you turn the knob onto a high heat area, you'll feel the knob vibrate a bit as if it were running.

The dryer is new enough to try and fix it, and I could really use some guidance. I have no experience working on dryers, but used to work on color laser copiers, so I'm capable of taking a machine apart. Any help you can provide is appreciated

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  • dangagen Jan 30, 2009

    I can't seem to find my voltmeter, but I did pull the venting system apart and cleaned it pretty well. It had a good deal of build up. I followed appldoctom's advice and taped the leads together to bypass the fuse as a quick test. I only ran it for about 2 minutes, but I once again had heat, so this is definitely tripped.

    My wife mentioned that the last time the dryer did have heat, it was very hot. Now it could be because the vent system was somewhat clogged, but I'm guessing the internal thermostat (next to the thermal fuse) is likely faulty. Would that be a fair assumption? I don't want to just replace the fuse to simply have it blow again because I didn't put out the extra 20 bucks or so for the internal thermostat.

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Lets see hear,..when your dryer starts do you hear two clicks or one.the first click is the motor centrifugal switch the second is power going to the gas valve and energizing the coil.if only one click.you need to check the fuse in the back of the dryer .its white ,i call it a missile and it has two wires too it .you can put those wires together and isolate with tape and if problem unit will run.if that was the problem you need to make sure all venting is clean also inner dryer air channels,but it sounds like you checked those.if two clicks your ignitor may have failed.you check that with a volt meter 110 volts i hope that gives you somthing to run with . God bless ,tom

Posted on Jan 23, 2009

  • Thomas Malailua
    Thomas Malailua Jan 30, 2009

    the thermal fuse will open because it gets too hot inside dryer.this will happen if the venting is blocked.imagian heating up to 180 degrees fast with out much place for that heat to go if you have any doubt on your home ducting dry a load with out ducting[it wont hurt a thing],time it .then connect ducting with same type of load .time it.if longer home may still be blocked.also older dryers did not have that fuse it wont hurt to dry a load.if it was my dryer and ducting and dryer air ways clean i would not replace thermo next to fuse unless running very hot.200 plus ps the operating thermo could malfunction,but it was rare. God bless ,tom

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