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We get no heat from the dryer, drum turns. I want to know how to access the burner elements, including the igniter and sensor. Do I have to take the dryer all apart?

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  • Dryers Master
  • 43,501 Answers

Hi,
If you are having problems with your gas dryer not heating the most common problem is that the ignitor goes bad. Even though it glows sometimes it is still not working properly.

Check out this tip that will give more details…

Gas dryer not working gas dryer not heating
http://www.fixya.com/support/r4398592-gas_dryer_not_working_gas_dryer_not


If you have an electric dryer, you can have many different things that can go wrong causing the dryer not to heat.
Check out this tip to see the things that can fail to cause your electric dryer not to work.

Dryer Troubleshooting Electric dryer wont heat
http://www.fixya.com/support/r3866345-dryer_troubleshooting_electric_dryer_won


heatman101

Posted on Aug 24, 2010

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1 Answer

Kenmore dryer heavy duty plus


Igniter could be burnt out

Feb 25, 2014 | Dryers

Tip

Whirlpool or Kenmore Dryer Does Not Heat


Electric

First , check the circuit breaker to make sure they are on . Be sure to UNPLUG the dryer , while checking with an ohm meter . When checking WITH power , BEST to have another person available in case of emergency . I do know of 1 person killed while working on his dryer .
A dryer operating on 240 volts , sends 120 volts to the timer and 120 volts to the motor . In between these two , are the thermal cut-off , and the element ( this is the basic operation parts ) . The 120 volts from the motor , goes directly to the element if selected for heat . The timer circuit , sends the other 120 volts , thru the operating thermostats , then thermal fuse , then thermal cut-off , then high-limit thermostat , then to the element . Usually , not ALL the time , the thermal fuse ( number 1 ) is the problem . The heating element ( number 2 ) is usually the problem , if the thermal fuse is good .
If the thermostats , element , and thermal fuse check good with an ohm meter , remove 1 wire from the element and check with a meter , which side is NOT getting 120 volts . Trace the wire which will either go to the timer ( occasionally ) or to the motor ( extremely rare ) .

Gas

On a gas dryer , for no heat , or , heats for a short time then runs but no heat afterwords until cooled down , first check that the electronic igniter , glows red . If it does NOT glow red , then check power to the burner ( 2 wires ) . If no power , then the thermal fuse is bad . (On electric dryers , the thermal fuse keeps the dryer from starting . On gas dryers , it keeps the dryer from heating . The thermal fuse , is a 1" long , or oval , white piece , with 2 wires going to it ) . Also if it does not glow red , the igniter itself could be bad . Again , check with an ohm meter . If the igniter glows red and clicks off , but no gas , the sensor could be bad . This sensor , is mounted to the side of the burner box , and when the igniter gets hot enough to ignite the gas , the sensor opens , sending power to the coils , which open dispensing the gas to heat the dryer . To check the sensor , with the drum removed , start the dryer , and after the igniter gets red , pull one of the wires OFF the sensor , and the gas should ignite . Do this very carefully , as electricity WILL be in the wire pulled off . If the dryer heats for a short time then stops heating , the problem will be the burner coils . These coils will get warm from the electricity going thru them , and will " open " ( short ) internally , until they cool down . Then heat again for a short time , then open , until cooled .
Most of the time , either the thermal fuse ( 1 ) or the coils are bad ( 2 ) or the igniter is bad ( 3 ) .

........A thermal fuse is a white 1" long torpedo looking piece , or , a white oval shaped piece , with 2 wires going to it .

NOTE1 : The thermal fuse keeps an electric dryer from starting and keeps a gas dryer from heating .

NOTE2 : If your dryer heats but the clothes do not dry , then a venting problem is obvious , as a dryer either heats or doesn't heat . Pull the dryer out and disconnect the vent from the dryer . Dry a load of clothes and if/when they dry in the normal amount of time , this tells you either the vent hose is kinked , maybe pushed back too far , or , the outside vent is blocked , or , the vent in the wall is restricted to the outside .

Electric Dryers

NOTE3 : If your lint screen is on top of the dryer , the element , thermal fuse , and thermostats are behind the rear dryer panel ....If the lint screen is behind the dryer door , then the element , thermal fuse ( located behind the lint screen housing ( 2 screws ) , and thermostats , are located behind the lower front panel .

on Apr 17, 2010 | Dryers

1 Answer

My whirlpool dryer comes on and runs good but it wont get hot can you tell me whats the problem


Hello there and welcome to fixya there are several things that could make this dryer not heat up
Here are the most common things

Thermal Fuse

If the dryer doesn\'t heat, but the drum
turns, check the thermal fuse(s). The thermal fuse protects the dryer
from overheating and helps to prevent fires. If the thermal fuse is
blown, it will have to be replaced.




Enter your model number to see parts for your dryer.

Help me find my model number


Gas Valve Solenoid

The gas valve has two or more electric
solenoids which open the valve to let the gas flow into the burner
assembly. If the dryer doesn\'t heat one or more of the solenoids may be
defective. If the igniter glows for 90 seconds but the burner flame
doesn\'t light, replace these coils as a set.


Dryer Igniter


If the dryer doesn\'t heat, the igniter might
be burned out. Check the igniter for continuity with an ohm meter. Dryer
igniters burn out over time, similar to a light bulb.


Heating Element

The heating element on an electric dryer can
burn out over time. If the dryer doesn\'t heat, the element should be
checked for continuity. The heating element cannot be repaired and must
be replaced if defective.


Heating Element Assembly

the heating element assembly on an electric
dryer can burn out over time. If the dryer doesn\'t heat, the element
assembly should be checked for continuity. The heating element assembly
cannot be repaired and must be replaced if defective.

Flame Sensor



Gas dryers have a flame sensor to detect the
heat given off by the flame. If the dryer doesn\'t heat, the flame sensor
might be defective. Check the flame sensor for continuity. This is not
as common as a burned out igniter or thermal fuse.


High Limit Thermostat


Although not common, if the dryer doesn\'t
heat the high limit thermostat can be defective. It can be checked for
continuity. If the thermostat is "open" the dryer doesn\'t heat.


Cycling Thermostat




The cycling thermostat regulates the
temperature of the air in the dryer. If the dryer doesn\'t heat it may be
caused by a defective cycling thermostat. This is not common.


Main Control Board

The main control board is normally not at
fault when the dryer doesn\'t heat. Check all of the other components in
this troubleshooting guide before replacing the main control board. The
main control board cannot be tested easily and must be replaced if it is
defective.


Timer
The timer is normally not at fault if the
dryer doesn\'t heat. In many situations where timers are replaced they
end up being returned. Check all of the more common components in this
troubleshooting guide before replacing the timer

Oct 14, 2013 | Dryers

1 Answer

Dryer not heating


Hello there and welcome to fixya

Here are the most common things that will need to be checked with a meter to ensure there is continuity on these parts no continuity means that the part is bad and needs replacement ok?

Thermal Fuse

If the dryer doesn't heat, but the drum turns, check the thermal fuse(s). The thermal fuse protects the dryer from overheating and helps to prevent fires. If the thermal fuse is blown, it will have to be replaced.


Enter your model number to see parts for your dryer.
Help me find my model number


Gas Valve Solenoid

The gas valve has two or more electric solenoids which open the valve to let the gas flow into the burner assembly. If the dryer doesn't heat one or more of the solenoids may be defective. If the igniter glows for 90 seconds but the burner flame doesn't light, replace these coils as a set.


Enter your model number to see parts for your dryer.
Help me find my model number


Dryer Igniter

If the dryer doesn't heat, the igniter might be burned out. Check the igniter for continuity with an ohm meter. Dryer igniters burn out over time, similar to a light bulb.


Enter your model number to see parts for your dryer.
Help me find my model number


Heating Element

The heating element on an electric dryer can burn out over time. If the dryer doesn't heat, the element should be checked for continuity. The heating element cannot be repaired and must be replaced if defective.


Enter your model number to see parts for your dryer.
Help me find my model number


Heating Element Assembly

The heating element assembly on an electric dryer can burn out over time. If the dryer doesn't heat, the element assembly should be checked for continuity. The heating element assembly cannot be repaired and must be replaced if defective.


Enter your model number to see parts for your dryer.
Help me find my model number


Flame Sensor

Gas dryers have a flame sensor to detect the heat given off by the flame. If the dryer doesn't heat, the flame sensor might be defective. Check the flame sensor for continuity. This is not as common as a burned out igniter or thermal fuse.


Enter your model number to see parts for your dryer.
Help me find my model number


High Limit Thermostat

Although not common, if the dryer doesn't heat the high limit thermostat can be defective. It can be checked for continuity. If the thermostat is "open" the dryer doesn't heat.


Enter your model number to see parts for your dryer.
Help me find my model number


Cycling Thermostat

The cycling thermostat regulates the temperature of the air in the dryer. If the dryer doesn't heat it may be caused by a defective cycling thermostat. This is not common.


Enter your model number to see parts for your dryer.
Help me find my model number


Main Control Board

The main control board is normally not at fault when the dryer doesn't heat. Check all of the other components in this troubleshooting guide before replacing the main control board. The main control board cannot be tested easily and must be replaced if it is defective.


Enter your model number to see parts for your dryer.
Help me find my model number

Timer

The timer is normally not at fault if the dryer doesn't heat. In many situations where timers are replaced they end up being returned. Check all of the more common components in this troubleshooting guide before replacing the timer

Oct 14, 2013 | Amana Dryers

1 Answer

No heat from tumble dryer


Hi.

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

If dryer is gas check for lint obstructions, check ventilation, test thermal fuse, thermistor, cycling thermostat and high limit, igniter, coils, burner, flame sensor and fan.

Dec 14, 2011 | Washing Machines

2 Answers

Dryer will not heat


Check the reset inside the dryer. You will need to open the machine. The part looks like this one. If this is ok, then check the heater element for continuity with a multimeter. If you need the heater element, here is a link to the part.

Dec 26, 2010 | Fisher and Paykel SMARTLOAD DE62T27G Gas...

1 Answer

Kitchen aid dryer / heat flame not staying on after 20 secs


Sounds like your gas valve is fine, if it comes on at all, its good. A air flow restriction would cause a overheat condition and shut down the burner. Once it cools back down the burner would re-ignite and repeat the cycle. The sensor on the left of the burner is the flame sensor and the flame wouldn't come on at all if it was bad. You've already changed the coil kit so the valve is fine, disconnect the vent from the back of the dryer and see if the problem goes away. If the problem stays, I would suspect the thermostat. Good luck.

Mar 16, 2010 | KitchenAid Dryers

2 Answers

Gas dryer works, but does not heat


Hello there:
here is a discriptive way of trouble shooting the dryer and it lists the common components that will normally fail if the element has not failed first
Gas Dryer Diagnosticsgasdryerguts.gifThis picture shows the main parts of a gas dryer's burner systemthat can fail. Understanding each component and it's failure mode canreally help diagnose a problem with a gas dryer.
Ignitor failure: The drum turns but the igniter doesn't glow, thereis no clacking sound as the gas valves open and there is no flameignition sound.
Radiant Sensor failure: The drum turns but the igniter doesn't glow,there is no clacking sound as the gas valves open and there is no flameignition sound.
Gas Valve Solenoid failure: The drum turns and the igniter glows andgets turned off but there is no clacking sound as the gas valves openand there is no flame ignition sound.
And another component failure to be aware of, but that's not shown here, is the operating thermostat:
Operating Thermostat failure: The drum turns but the igniter doesn'tglow, the gas valves don't open (there is no clacking sound) and thereis no flame ignition sound.
And here's a picture of other components to ohm out if you're getting no heating at all:
ldrm-gas-burner.jpg

Nov 21, 2009 | Hotpoint Dryers

2 Answers

Estate gas dryer model#TGDX640JQ2 running no heat


You may have a bad heating element,unplug the dryer. you need a 1/4 in socket driver to take off the back panel this will give you access to the guts.If your handy you can buy a new one and replace it.Tell me if you need more help.
Hope this helped.Let me know by rating me.
For more help go to live chat.
lenwest

Jan 29, 2009 | Whirlpool TGDX640P Dryer

1 Answer

Gas dryer


hi

In a gas dryer, heat is provided by a gas heater that is controlled by an air shutter. The gas heater is generally the source of no-heat or drying problems. You can often correct such problems by adjusting the air shutter on the gas burner, which is located along the bottom of the dryer.

To adjust the shutter, take out the screws and remove the panel that covers the gas flame. Turn on the dryer so the flame is burning. If the flame has a deep blue color and you hear air whistling around the burner, the air/gas mixture is receiving too much air. If the flame has a yellow tip, the mixture is not receiving enough air. Turn the thumbscrew or loosen the two screws slightly to increase or decrease the flow of air to the burner. Keep turning until the flame is a light blue color, without any yellow, and the whistling stops.

Gas dryers use an electric ignition device rather than a pilot light to light the gas heater: An element becomes hot and glows like the filament in a lightbulb. Electric ignition systems are always sealed; you can't adjust or repair them. If an electric ignition device fails, call a professional service person for replacement.
how-to-repair-a-dryer-2.jpg

In a gas dryer, heat is provided by a gas heater, controlled by an air shutter.
Electric dryers have self-contained electric heating elements.


Sep 14, 2008 | Dryers

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