Question about Kenmore 87572 Dryer

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The heat is very low and takes a long time to dry. Would it be the element or the thermometer?

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ALWAYS UNPLUG YOUR DRYER BEFORE ATTEMPTING TO DO ANY WORK ON IT.
Check to make sure you are getting full 220 Volt power to the dryer, if you are then:
Check your Wiring
Often the main wiring connection from the house, at the dryer, burns and the connection breaks. If this has happened to your dryer, you need to replace the power cord and the terminal block inside the dryer to which the wire is attached.
Check the Door Switch
If the door switch or the door-switch actuator is defective, the dryer won't work and you need to replace the failed component. The switch is inside the dryer main housing near the door frame. Sometimes you need to raise or open the top or front of the dryer to reach the switch. Check for continuity you should have none with door open, and should have a reading when closed. If not replace the door switch.
Check to make sure you heating problem is not a lint build up in the discharge hose or the dryer,as this condition can cause heater/thermistor problems such as overheating of the heating coil leading to failure of the coil and burnout of the thermostat/thermistor due to overheat.
Remove the back/or front just under the door of the machine and try to locate the air duct going from the blower to the drum. Normally inside/outside the air duct you will find the heating coil and the thermostats/thermistors. Once you have located the heating coil, remove the two wires from it and check the coil with an ohm meter across the two terminals of the coil.
You should read continuity across the terminals, if not you will need to replace the coil as it is faulty.
If the heating coil is ok, then:
You can check the thermostat/thermistor one at a time by removing the two wires and taping them together with electrical tape and running the dryer to check to see if the element is red or not,
or with an ohm meter check the two terminals of the thermostat/thermister
after you have removed the wires, the thermostat/thermistor should have/show continuity across the terminals.
If the coil heats up, or the thermostat/thermistor shows an open circut
then replace the thermostat/thermistor as it is defective.
(Thermal fuse.If it overheats the dryer will not operate. It's located on the blower housing. It cannot be reset. A vent clogged with lint can cause it to overheat. You can test it with an Ohm meter or continuity checker, if no continuity, replace it)
DO NOT LEAVE THE WIRES TAPED TOGETHER AFTER THE TEST.
This could cause a FIRE, as you have removed the safety of overheat from the machine.
Right after replacing a dryer element, always run the dryer on 'air fluff' / 'no heat', and go outside to verify there's plenty of air coming out your vent system.
If the vent's clogged, that new element can burn out very quickly.
For video and pictures on how to replace the an element go to the following website, it will give you an idea what you are in for:
davesrepair.com/DIYhelp/DIYreplacingWPLdryels.htm
This is a FREE answer, Please rate me

Posted on Jan 02, 2011

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1 Answer

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The machine has two issues that could cause this:
1. As heating elements age, they got hotter before they burn out.
2. There is a thermostat on the heater element enclosure that controls the heat, this might be going bad.

If you open the panel to see the heating element, there should be a tech sheet in the machine that has temps listed for different settings.
While you are in there, you need to clean it out. It probably has a lot of lint in the machine and this can cause a fire hazard.
The way that you test it is to put a load of damp clothes in the machine and set it and then take the temp at the outlet. You need to use a meat thermometer to check the output temp. Use the chart on the tech sheet to tell if the thermostat is working right. Also it goes without saying that you should unplug the machine for most of this.

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This caused by one of two possible things. Either you have poor air flow, or a clogged vent preventing air from flowing freely and therefor making the dryer short cycle, which in turn will take you two or three times to dry yor clothes, or the heating element has gone bad, burnt in half and is making contact with the case to provide it just enough power to barely heat. The second thing is a very rare occurance. I would turn the dryer on, find out where the air vents out to, and with the dryer running, go to where it vents and check to see if there is a strong flow of air. 9 times out of 10 that is going to be your problem. Another way to check air flow is to just pull the vent off the back and let the dryer run and see if your clothes dry faster. If you do it that way and they still take a long time to dry, then you'll probably need to replace the heating element

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Hello, well i must ask if there is water pooling on the dishes and that is not drying? If so it is actually normal for the dry cycle to get all of the water dried up on the top rack. What the heating element does is heat the air in the tub to help the water evaporate quicker. first what i would do is watch to see when the wash cycle is done open the door for a couple seconds and let all of the steam out to get rid of alot of excess moisture. When I have done this it tends to help the drying significantly. Also there should be a vent on either the front or top of the door, this is to let out the excess moisture. If it is blocked by anything or the steam is not allowed to exit it will hinder drying. And one other thing to consider is if the water coming into the dishwasher is not hooked up to a hot water line then i would strongly suggest doing so to save on drying time and energy because the dishwasher has a thermometer to tell if the water is up to temp, and if the water is cold the heating element will be used to heat the water thus using more energy and slowing wash times. Good luck I hope this helps.

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Vent Frequently there's an obstruction in the vent duct from the dryer to the outside of the house. For the dryer to heat properly, the duct must be clean and clear of lint or any other substance. Heating element Your dryer's heating element may be partially burned out. If it is, your dryer still heats, but at such a low temperature that it takes three or four times as long to dry the clothes. If the element is partially burned out, replace it.hope this help you out sincerely D.Jones

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Dear Scrapyourhea,
First ensure that your independent thermometer is working fine. It seems that there is problem with your heat mechanism. Normally this type of problems requires servicing....
Download the manual from given link and go through it. This will tell you the cause for the same.
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1 Answer

Laundry not getting dry


It normally takes about 45 minutes for a dryer to dry a full load. If your dryer is taking more than an hour, check these.

Vent
Heating element
Internal ductwork
Cycling thermostat
Vent Frequently there's an obstruction in the vent duct from the dryer to the outside of the house. For the dryer to heat properly, the duct must be clean and clear of lint or any other substance.

Heating element Your dryer's heating element may be partially burned out. If it is, your dryer still heats, but at such a low temperature that it takes three or four times as long to dry the clothes. If the element is partially burned out, replace it.

Internal ductwork Your dryer has some internal ductwork. If it gets clogged, your dryer can't dry properly. In most dryers, to get to the internal ductwork to clear the clog, you have to substantially disassemble the dryer. A quick way to check for internal clogs is to remove the lint filter and use a flashlight to inspect the inside of the duct. If it looks clogged and you can't clear it using your vacuum, contact a qualified appliance repair technician.

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1 Answer

My dryer is a LER3624JQ1 it heats up but takes forever drying clothes. I have to run it 2 or 3 times. Help


Hi there,

Drying is too slow
It normally takes about 45 minutes for a dryer to dry a full load. If your dryer is taking more than an hour, check these.

Vent
Heating element
Internal ductwork
Cycling thermostat

Vent
Frequently there's an obstruction in the vent duct from the dryer to the outside of the house. For the dryer to heat properly, the duct must be clean and clear of lint or any other substance. 


Heating element
Your dryer's heating element may be partially burned out. If it is, your dryer still heats, but at such a low temperature that it takes three or four times as long to dry the clothes. If the element is partially burned out, replace it. 


Internal ductwork
Your dryer has some internal ductwork. If it gets clogged, your dryer can't dry properly. In most dryers, to get to the internal ductwork to clear the clog, you have to substantially disassemble the dryer. A quick way to check for internal clogs is to remove the lint filter and use a flashlight to inspect the inside of the duct. If it looks clogged and you can't clear it using your vacuum, contact a qualified appliance repair technician.


Cycling thermostat
Although this isn't a common problem, one of the thermostats that controls the temperature in your dryer may break and cause the dryer to heat poorly. If so, you need to replace it. The thermostat is usually a small, round, black device mounted to an oblong steel plate. The plate is mounted to the internal ductwork with two screws.

Good Luck!!
Thanks

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Dryer won't heat up to dry the clothes the heating element works


Check the following to address this issue--


Note: Normal drying time for a dryer is about 45 minutes (some may take up to an hour).

1. Venting
Make sure the dryer vent hose, as well as the rest of the vent duct, is not clogged.

Unless regular maintenance is performed, chances are there is a lot of lint accumulated inside the dryer. This might affect the drying time and could be a fire hazard. Make sure to have your dryer cleaned regularly. Because this might involve taking most of the dryer apart, it is recommended to have a qualified appliance repairman perform this task.

2. Thermostat
There are a couple of cycling thermostats inside the dryer. If one of them breaks down, it might affect the dryer's performance. Replace the defective thermostat.

3. Heating element
A heating element might only be partially burned out, in which case it would still work but will take longer time to dry the clothes. Replace the element if found defective.

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john there is only one heating element.ither it works or it dosent.when acustomer complains of low heat or long dry times 99out of100 its the venting or the dryer is blocked with lint.remove the dryer from the venting and try a load.if better clean house venting.you .........if not better you should have a great air flow leaving the dryer so if not drying well with venting off.take dryer apart a clean all araes that air is moving,where lint can block that flow.god bless .tom

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