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Re: Clothes Dryers
No, there is 2 sensors in the duct work that will shut down the heating element when the temp gets to a certain point. there may be a "punch out" in the side, but this is not for air to get out. the internal ducts in a dryer are sealed.
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if the dryer seems to be running fine check the vent line and the duct that the lint filter slides into,most likely if it takes to long to dry clothes lint is blocking the air movement somewhere,when was the last time you cleaned out the dryer and vent line,you should clean the dryer once a year so you don't have a fire and your clothes will dry on time,if the vent line is long remove it from the back of the dryer and blow it out with a leaf blower,remove the lint filter duct and clean it and vac out the cabinet where the motor is.
the dryer and vent line needs to be cleaned out.unplug the dryer,pull out the lint filter and remove the two phillips head screws in front of the filter,pull the dryer out away from the wall so you can work on the back,remove the vent line and remove the back panel,on the left side you'll see the metal duct that the lint filter slides into,remove the 4 screws that hold the duct in place,remove the duct and clean it out,with a shop vac vac up any lint then stick the hose on the other end of the vac and blow out the blower wheel,the heater on the other side and into the hole that the vent line connects to.if your vent line is a long run i use a leaf blower to blow out the line,go outside and make sure there isn't a cage or anything blocking the outside duct,if there is remove it,stick the leaf blower into the vent line and blow it out to the outside,this should be done once a year with a gas dryer and once every 1 1/2 years with electric so your clothes will dry on time and you don't have a fire.put it back together but not the top screws,now you have to clean out the front cabinet,watch video http://www.youtube.com/watch?v=xGIG8Wo5-N4 hope this helps,all a dryer does is move air to dry the clothes if lint is blocking the air flow the clothes will take longer to dry and then you'll start popping the thermal fuse or high limit thermostats,also don't self clean your oven until after the holidays,when using self clean the oven gets up to 1000 degrees,the heat can damage many parts and if it damages the clock assy. you might not get the parts before thanksgiving so clean it out by hand.have a great holiday.
Most of the time this problem is attributed to a blocked or more precisely, a partially blocked dryer vent system. When a dryer vent is blocked it stops the air flow and the heat backs up into the dryer turning the heat sensors on and off prematurely taking longer for the clothes to dry. Over time this may cause the heat overload fuse to blow and you will have no heat at all.
First take a look at the dryers ducting between the dryer and the wall to make sure the vent duct (normally a flexible style) has not been crushed or kinked.
If the dryer duct to the wall is in good shape then in most cases there is a blockage some where between the wall where the ducting connects to the vent and where it exhausts outside.
The major cause of a blocked dryer duct occurs when the water in the clothes is heated to a high temperature and turned into steam, which is then exhausted out the back of the dryer to outside. As the steam cools on its journey and gets closer to the outside of the house, it tends to get cooler and turns back into water droplets. This is going to be the point where the dried lint, as it escapes past the lint filter, sticks to the newly formed water drops and starts a gradual chocking down of the 4" diameter vent to 3",2",1" and finally stops all flow of air.
Remember, the dryer is designed to exhaust so many cfm's and the more choked the vent the more heat is backed up into the dryer.
If you cannot access the dryer ducting, because it is in the wall or ceiling, to look for the obstruction, then look in the yellow pages or contact the local appliance repair service company and get the name for a good duct cleaning company.
you need to clean out the dryer.unplug the dryer.remove the vent line and blow it out with a leaf blower if it's a long run.make sure the outside vent is clear.next clean out the duct that the lint filter slides into and vac out the inside of dryer where the motor is.do this once a year and your clothes will dry on time,no fires and you'll change less parts if the dryer isn't running hot from blocked ducts.let me know how you make out
Are you sure that the duct is clean and free flowing? If the duct is partially blocked the dryer's efficiency drops dramatically. I would double check the duct at both ends and clean out as required - air flow is very important - with the dryer on - go check the air coming out of he duct outside - if it is very forceful - then the problem is elsewhere - however if only a little bit of sir is coming out - your all plugged up!.
With the dryer not connect to the external venting turn the dryer on and see if there is air coming out ot the vent from the dryer. Is this flow of air strong or weak?
If weak then there could be a problem inside the dryer some where. Perhaps the fan is not operating properly. Just my thoughts.
You say you have check the beginning and end of the duck vent pipe. How about seeing if it venting duct is clear from one end to the other.
If still heating, clean out vent and check for kinks. Also, REMOVE PLUG FIRST!! Remove back and remove four screw holding filter duct assembly at bottom left. Pull duct toward rear and reach into bottom of duct and remove lint. Also, wash out filter screen.