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Dryer rotates but doesnt heat how do i test to see if its the heating coil

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  • paul  hardy
    paul hardy May 11, 2010

    what is the make and model?

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Depends what model but electric dryer heaters are a simple resistive coil and can be tested for continuity using an ohmmeter. They will read a specific resistance depending which style, but generally if you have a continuous circuit and the element is not grounded, it is probably good. Before you suspect the element itself, many electric dryers these days have a thermal overload, especially if it is a whirlpool/kenmore/kitchenaid dryer. Look for an oblong white overload in the area of the thermosts, likley with light blue wires. They go out often.


Posted on Dec 14, 2008

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Coils lights up but no heat goes up to drum


if your heater coil is working

dryers have a cool down cycle built in

the coil heats shuts down
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Dcvh660ghbb dryer wont heat


First check to see that the exhaust venting line is clear (not full of lint) as well as the path in the dryer to the line. This is the most common cause of no heat.
Second set the knob to heat turn on dryer with the lights off and the door open but the "open door" switch so that it still rotates with the door open. Look at the back of the rotating drum for a orange/red glow behind the drum (the heater coils). If there is no glow the heater coils are probably broken.
As the dryers age, the amount of thermal cycles the heater elements go through until the point when the coil wire breaks. There usually two heater coils behind the rotating drum (one hotter than the other and when combined the hottest heat temperature setting. You will need to pop open the top where you see the belt that turns the drum. The belt is removed from the spring loaded tensioner pulley at the base of the dryer. Then you can lift the drum out to get to the heater coils. Since no heat, both should be broken and will require replacement.

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Hi.

If dryer is electric check for lint obstructions, check ventilation, test thermal fuse, thermistor, cycling thermostat and high limit, element and fan.

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Dec 14, 2011 | Washing Machines

2 Answers

Dryer not heating up


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
or with an ohm meter to test the thermostat/thermistor. (Should have/show continuity)
If the coil heats up then replace the thermostat/thermistor.
(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 an element go to the following website:
davesrepair.com/DIYhelp/DIYreplacingWPLdryels.htm
This is a FREE answer, Please rate me

Apr 15, 2011 | GE DCVH515GF Gas Dryer

1 Answer

I need to know where electrical components are and how to test them, i have no heat and my vents are clear plenty of air flow,drum is turning and it doesnt matter what setting the sryer is on, i dont get...


The dryer's heat coil has probably burnt out due to a coin from a pants pocket in the laundry shorting it out to the frame which is grounded. On Maytag, the heat coil is positioned around the drum just behind the door. Usually a circuit schematic can be found attached to the back cover of the dryer. If you can figure out the schematic, you can check heat coil continuity using a tester. Before attempting any repair of your dryer, be sure to unplug it. You would likely have to take the dryer's cover off to do any testing and at least for Maytag, the heat coil is readily visible once the cover is off. You should be able to see where the heat coil was shorted to ground and was burnt out by the coin. Most appliance repair shops will likely have a heat coil replacement provided you give them the dryer's make and model number.

Mar 10, 2011 | Dryers

1 Answer

Doesnt heat up tested coil (hook up to110 volt house got hot ) but dryer doent heat up


There are a couple temperature sensors that you can test, they can fail over time. It can also be the timer.
There is a sensor that detects when the dryer is cool and the heating coil can turn on. If it fails the dryer will never heat up.
There is also a sensor that detects when the dryer has overheated, and it prevents the dryer from turning on.
Hope it's not your timer.

Mar 06, 2011 | Dryers

1 Answer

Dryer works but doesnt get hot to dry clothes


there is only 1 reason as to the unit still running but not heating if its running then all thermos must be intact so it has to be the heating coil take the unit appart make sure the two heating points still have the cables attached if you can do a polarity test on the element that will define its blown then replace the coil in most cases when the coil blows you can see a burn mark were it did

best luck

Dec 02, 2010 | Roper REX4634KQ Electric Dryer

2 Answers

Dryer not heating


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:
Sounds like your problem may be with the heating coil. Remove the back of the machine and try to
locate the air duct going from the blower to the drum. Normally inside the air duct you will find
the heating coil and the thermostats/thermistor. 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 by removing
the two wires and taping them together with electrical tape. If the coil heats up then replace
the thermostat/thermistor. 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. I will include these two web
sites for parts and further help:
http://www.partselect.com/ http://www.appliancepartspros.com/index.aspx
Both also have chat assistance 24/7.
Good Luck, Hope this helps
Please do not forget to rate me, Thank you

May 27, 2010 | GE Profile DPSB619ED Electric Dryer

1 Answer

Dryer runs...timer wont rotate and wont heat up


Good day,
Timer woun't run if there is n heat.
1. Check to see you are getting 230 volts to the machine. The motor uses only 115 so is not a good indication.
2. Remove back cover. You will need an ohm meter to test the components.
A. In the center bottom is a skinny white bakelite device held on with one screw. Remove one wire and check. It should check zero ohms. If not replace.
B. On the bottom right is a canister with the heating element terminals sticking out. They should test at 30 or less ohms. If not replace the heating element.
C. There are about 3 other limit thermostats in the area you're working. They should all check at zero ohms. Replace as needed.

Below is a tutorial on changing a heating element.

http://www.applianceaid.com/wp_element.html

Mar 02, 2010 | Whirlpool Dryers

1 Answer

Not heating


sounds like a heat sensor to me. Sorry but you will have to get it tested or buy both sensors on your heat element. look in the dryer as its running... Does the heat coil turn orange in the dark???? If it doesnt you will have to replace the heating element.. (should be about 75 bucks)

Nov 02, 2009 | Whirlpool Dryers

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