Dryer Overheats

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Dryer Overheats

The part or condition enumerated Dryer Overheats is ordered from the most to least like to occur. Check or test each item, beginning with those on top of the page.

Commercial Dryer Overheats

Cause 1 – Heating Element

The heating element heats up air as it travels through the drum of the dryer. If the heating element short-circuits, it generates heat incessantly, whether or not the dryer has reached the desired temperature, causing the dryer to overheat. In order to determine whether the heating element has failed, you must test the continuity of each terminal in the case with a multimeter. If the heating element has continuity with the case, then it has short-circuited. If the heating element is short-circuited, then you must replace it. This is the highest probability if the Dryer Overheats

Cause 2 – Heating Element Assembly

The heating element heats up air as it travels by the element. If the element is short-circuited, it generates heat incessantly, whether or not the dryer has reached the desired temperature, causing the dryer to overheat. In order to determine if the heating element has failed, you must test the continuity of the heating element with a multimeter. If the element does not have continuity, then you must replace it. Then, test the continuity from the terminals to the case. If the heating element has continuity with the case, then it has short-circuited. If the heating element is short-circuited, you must replace it.

Cause 3 – Airflow Problem

If the ventilation of the dryer is even partially obstructed, it can cause airflow within the dryer to become restricted. If airflow is restricted, then the dryer will take a long time. The ventilation system of a dryer should be cleaned at least annually to ensure the ideal performance.

Cause 4 – Cycling Thermostat

The cycling thermostat activates the heat to maintain the temperature of the air. If the thermostat is faulty, it can keep the heat on for a long time, causing the dryer to overheat. However, this is uncommon. Before replacing the cycling thermostat, check all of the more commonly faulty parts. If all the other components work correctly, check the thermostat with a multimeter to determine its continuity. If the thermostat does not have continuity, then you must replace it.

Cause 5 – Felt Seal

Most of dryers have a felt seal in the front and back part of the drum to retain heat by keeping it from escaping the drum. If the seal is damaged or absent, the heat will not be able to leave the dryer drum, causing the dryer to overheat. Check the seal of the drum to ensure that it is properly trapping in heat. However, this is uncommon. Before replacing the felt seal, check all of the more commonly faulty parts. If all other components work correctly, then you must replace the felt seal.

Cause 6 – Blower Wheel

The blower wheel is propelled by the drive motor, drawing air into the drum of the dryer. Oftentimes, lint, socks, and small items escape the lint filter and become trapped in the blower wheel. The sleeve of the blower wheel can also become damaged, causing the wheel of the fan to wobble on the axis of the motor. If the blower wheel is obstructed or faulty, it can cause the dryer to overheat. To determine if the blower wheel is functioning well, remove the dryer vent and evaluate the degree of air flow. If airflow is weak, check that there are not any other obstructions on the blower wheel. If no obstructions are present, then rotate the wheel of the fan with the hand. If the blower’s wheel wobbles as it rotates, then you must replace it.This is the lower probability if the Dryer Overheats

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18 thoughts on “Dryer Overheats

  1. A dryer overheats when it generates more hot air than necessary. Dryer overheating may be caused by several reasons.

    To start with, if the dryer overheats, the heating element, which is the component that heats up air inside the drum, is highly likely to be out of order. A short-circuit in this element results in a constant flow of hot air inside the dryer drum, regardless of dryer necessary temperature. The heating element should be the first component to be tested in order to determine whether it works or not, due to the fact that this is the most likely reason for overheating. Should the heaing element fail to operate effectively, it must be replaced.

    Not only may overheating be caused by a failure in the heating element, but also it could result from an airflow problem. Even though this problem is not as common as the heating element failure, it should be taken into account. Should the dryer ventilation be blocked, the dryer will have to work harder, leading to overheating. Proper cleaning will prevent the dryer ventilation from being blocked.

    Another factor that could give rise to overheating is a failure in the cycling thermostat. The cycling thermostat is the dryer component that regulates the heat inside the drum. In the event that the cycling thermostat fails to work properly, air will be heated up without stop, leading up to dryer overheating.

    Apart from that, overheating might arise from damage in the felt seal. The felt seal is a component fitted around the front and the back part of the dryer drum that keeps the heat inside the drum. Provided that the felt seal is damaged, hot air will escape from the drum and the dryer will warm up air without stop in order to reach the desired temperature inside the drum, which results in dryer overheating.

    Finally, blower wheel obstruction could be another reason for overheating. Despite the fact that a blower wheel obstruction is extremely unlikely to happen, it could be a reason for overheating. The blower wheel is the component that draws air into the dryer drum. In the event that it is blocked or damaged, it will produce a weak flow of air, making the dryer to work harder and, consequently, to overheat.

    All in all, if the dryer oveheats, the first component to be tested should be the heating element. Whether the heating element works properly, the dryer ventilation should be tested. Provided that both of the components mentioned before operate normally, then, the cycling thermostat could be the problem. Should all these components work perfectly, then, the felt seal may be damaged or the blower wheel may be blocked.

  2. Why does your Dryer Machine overheat?

    The Dryer Machine may overheat due to many causes, the most likely cause of overheating is a short-circuit of the heating element, if this happens you must replace it. Another cause of overheating could be an airflow problem. If the ventilation of the dryer is partially obstructed it can cause airflow within the dryer to become restricted. When thermostat is faulty, it can cause an overheating. If the thermostat does not have continuity must be replaced, this is uncommon. It is important to check the seal, that is located in the front and back part of the drum, if the seal is damaged or absent this will cause an overheating, and should be replaced. This is also an uncommon cause. The obstruction or the fault of the blower wheel can be a problem too, this is the lower probability if the dryer overheats.

  3. Causes of overheated dryer

    There’s a few causes that determinates when a washing machine is overheating. You must check on the heating element assembly, airflow element, cycling thermostat, felt seal and the blower wheel and be able to recognize the functions of each one of them.

    First, the heating element heats up air as it travels through the drum of the dryer. To know if has failed, you must test the continuity of each terminal in the case with a multimeter. Then, the other way around. If the heating element has continuity with the case, then it has short-circuited. Then, check the heating element assembly. If the element is short-circuited, it generates heat incessantly, whether or not the dryer has reached the desired temperature

    The Airflow element. If the ventilation of the dryer is even partially obstructed, it can cause airflow within the dryer to become restricted. The cycling thermostat. It activates the heat to maintain the temperature of the air. First, check all of the more commonly faulty parts. If all the other components work correctly, check the thermostat with a multimeter to determine its continuity.

    The felt seal. Retains heat by keeping it from escaping the drum. Check all of the more commonly faulty parts first. Then, If all other components work correctly, then you must replace the felt seal. The blower wheel. Is propelled by the drive motor, drawing air into the drum of the dryer. If the blower wheel is obstructed or faulty, it can cause the dryer to overheat. To determine if its working properly, remove the dryer vent and evaluate the degree of air flow.

  4. Dryer Overheating
    There are six main reasons why a dryer overheats. These reasons are listed below from the most likely to the least likely to occur as follows: 1. Heating Element, if the heating element short-circuits, it generates heat incessantly causing the dryer to overheat. In order to check this, you must test the continuity of each terminal in the case with a multimeter. If the heating element has continuity with the case, then it has short-circuited. In such a case, you must replace it; 2. Heating Element Assembly, if the element is short-circuited, it generates heat incessantly causing the dryer to overheat. In order to check this, you must test the continuity of the heating element with a multimeter. If it does not have continuity, then you must replace it. Then, test the continuity from the terminals to the case. If the heating element has continuity with the case, then it has short-circuited. In such a case, you must replace it; 3. Airflow Problem, please make sure that the ventilation of the dryer is not even partially obstructed as this can cause airflow within the dryer to become restricted. The ventilation system of a dryer should be cleaned at least annually to ensure the ideal performance. 4. Cycling Thermostat, if the thermostat is faulty, it can keep the heat on for a long time, causing the dryer to overheat. Before replacing the cycling thermostat, check all of the more commonly faulty parts. If all the other components work correctly, check the thermostat with a multimeter to determine its continuity. If the thermostat does not have continuity, then you must replace it; 5. Felt Seal, make sure that the seal is not damaged or absent as the heat will not be able to leave the dryer drum, causing the dryer to overheat. Check the seal of the drum to ensure that it is properly trapping in heat. Before replacing the felt seal, check all of the more commonly faulty parts. If all other components work correctly, then you must replace the felt seal; 6. Blower Wheel, please make sure that lint, socks, and small items have not escaped the lint filter and become trapped in the blower wheel. The sleeve of the blower wheel can also become damaged, causing the wheel of the fan to wobble on the axis of the motor. If the blower wheel is obstructed or faulty, it can cause the dryer to overheat. To check if the blower wheel is functioning well, remove the dryer vent and evaluate the degree of air flow. If airflow is weak, check that there are not any other obstructions on the blower wheel. If no obstructions are present, then rotate the wheel of the fan with the hand. If the blower’s wheel wobbles as it rotates, then you must replace it. This is very unlikely to occur.

  5. Dryer overheat causes

    When a dryer overheats, it can be because of certain elemrnts that caused it to malfunction.

    To begin with, the heating element could short-circuit generating an excess of heat, even if it did or didn’t reach the desired temperature. This can be determined by testing the continuity of each terminal in the case with a multimeter. Another element that could cause the overheating relies in the airflow. If it is restricted, it will take longer to work; although, this can be easily avoided by cleaning the ventilation system at least one time a year.

    In addition, the cycling thermostat is another factor to add up to the causes of malfunctioning. If it is faulty, which is not very common, it will keep the heat on, causing it to overheat. Also, dryers tend to bring with them a felt seal to retain the heat, if it is damaged, it will not be able to leave the dryer drum and it will cause it to fail.

    Finally, the lower probability for the dryer to overheat can be caused by the blower wheel. Sometimes small particles scape the lint filter and become trapped in the blower wheel; its sleeve can also become damaged, causing the fan to wobble on the axis of the motor. To check if it is funcitoning well, we only need to remove the dryer vent and evaluate the degree of air flow. In conclusion, to prevent the dryer from overheating, we need to be careful in the way we use it and keep the inside clean to ensure its performance.

  6. What causes a dryer to overheat?

    The causes are ordered from most likely to least likely to occur:

    1. The heating element or the heating element assembly is short-circuited. In this case, you should test the continuity of each terminal with a multimeter and replace it, if necessary.

    2. The ventilation of the dryer is partially obstructed. It is recommended that you clean it up at least once a year.

    3. The thermostat is faulty. You should check it with a multimeter to determine its continuity and replace it, if necessary.

    4. The seal is damaged or absent. If this happens, check the seal of the drum to ensure that it is properly trapping in heat.

    5. The blower wheel is obstructed or faulty. It is recommended to remove the dryer vent and evaluate the dregree of air flow.

  7. There are six elements that may cause dryer overheating. Short circuits are the highest probability, due to assembly problems. Malfunctions in in ventilation system, thermostat, a damaged absent seal or in the blowerwheel can also provoke dryer ovreheat.
    Cinthya Cabrera miracastella@gmail.com

  8. Sobrecalentamiento de la secadora
    La parte enumerada Sobrecalentamiento de secadora está ordenada desde lo más probable a ocurrir hasta lo menos probable.
    Causa 1 – La resistencia
    La resistencia calienta el aire mientras este viaja a través del tambor de la secadora. Si tiene un corto circuito, genera calor sin cesar, independientemente de si la secadora alcanzó o no la temperatura deseada, lo cual provoca su sobrecalentamiento. Para determinar si la resistencia ha fallado, usted debe comprobar la continuidad de cada terminal con un multímetro. Si la resistencia tiene continuidad con la caja, entonces ha hecho corto circuito y debe ser remplazada. Esta es la causa más probable de sobrecalentamiento de la secadora.
    Causa 2 – Ensamblaje de la resistencia
    Si la resistencia tiene un corto circuito, genera calor incesantemente, aunque la secadora haya alcanzado o no la temperatura deseada, causando su sobrecalentamiento. Para determinar si la resistencia ha fallado, usted debe comprobar su continuidad con un multímetro. Si no tiene continuidad, entonces debe ser remplazada.
    Después, verifique la continuidad desde los terminales hasta la caja. Si existe continuidad, entonces se produjo un corto circuito y, por tanto, debe ser remplazada la resistencia.
    Causa 3—Problema de flujo de aire
    Si la ventilación de la secadora es incluso parcialmente obstruida, puede restringir el flujo de aire en su interior. Si ello ocurre, entonces el secado tomará un largo tiempo. El sistema de ventilación debe ser limpiado, al menos una vez al año, para asegurar su desempeño ideal.
    Causa 4—Termostato de ciclo
    El termostato de ciclo activa el calor para mantener la temperatura del aire. Si el termostato está defectuoso, puede mantener el calor activado por un largo tiempo, causando que la secadora se sobrecaliente. Sin embargo, esto no es común. Antes de remplazar el termostato de ciclo, verifique las partes que se rompen con más frecuencia. Si todos los restantes componentes funcionan correctamente, verifique el termostato con un multímetro para determinar su continuidad. En caso de que no exista continuidad, entonces debe remplazarlo.
    Causa 5–Sello de fieltro
    La mayoría de las secadoras tienen un sello de fieltro en la parte delantera y trasera del tambor para retener el calor. Si el sello está dañado o ausente, el calor no será capaz de abandonar el tambor de la secadora, causando el sobrecalentamiento de la misma. Verifique el sello del tambor para asegurarse de que está atrapando el calor apropiadamente. Sin embargo, esto no es común. Antes de remplazar el sello de fieltro, verifique las partes que se rompen con más frecuencia. Si todos los restantes componentes funcionan correctamente, entonces debe remplazarlo.
    Causa 6— el ventilador
    El ventilador sopla aire al interior del tambor de la secadora. A menudo, pelusas, medias y piezas pequeñas escapan del filtro y quedan atrapadas en este dispositivo. Los casquillos del ventilador pueden dañarse también, causando que la rueda del ventilador se tambalee sobre el eje del motor. Si el ventilador está obstruido o defectuoso, puede causar que la secadora se sobrecaliente. Para determinar si el ventilador funciona correctamente, extraiga la rejilla de ventilación de la secadora y evalúe el nivel de flujo de aire. Si el flujo de aire es débil, verifique que no existan otras obstrucciones en el ventilador. De no haber obstrucciones, rote la rueda del ventilador con la mano y, si se tambalea mientas gira, entonces debe remplazarla. Esta es la causa menos probable de sobrecalentamiento de la secadora.

  9. Dryer overheating is one of the most common problems the commercial dryer can face. There are six main reasons to this (from most likely to occur to least likely to occur)
    1. The built-in heating component malfunctions and motives a short-circuit, which causes a ceaseless uprising of heat. A multimeter reading of each terminals’ continuity is enough to diagnose the problem. If continuity exists, short-circuit has occured. Replacing it is the best solution.
    2. As in the first described issue, a short-circuit of the heating element. Proceed as above, testing the continuity of the element. If it deems absent, replace it.
    3. Constraint of the ventilation can result in an airflow problem. Clean the vents to aid the correct functioning of it.
    4. A flawed cycling thermostat causes the heat to stay on and rise, so the dryer becomes excessed in heat. Perform a thermostat check with a multimeter to analyze the continuity. Replace it if it comes back negative.
    5. A damaged seal can keep the heat retained in the dryer’s drum. Make sure the seal holds the heat correctly. Though it is a rare problem, but replace the seal after checking the rest of the components.
    6. Check for items of clothing that may be stuck in the blower wheel. An obstacle in the component can result in a malfunction of the dryer, caused by the overheating of it.

  10. Dryer overheating can be produced by six problems. There is a high possibility that those problems can cause short-circuits. Also, the malfunctioning of the airflow, the thermostat and the blower wheel as well as the absence or damage of the felt seal can bring about dryer overheating.

  11. Are you interested in getting to know how dryer overheats takes place? Take a few minutes to read what’s to come.
    There are 6 causes that make this phenomenon to happen, I’ll mention them from the most common one to the least common one.
    The first one is Heating element, it’s when air is heated up by the heating element while travelling through the drum of the dryer, and it shortcircuits, and therefore heat is generated continuously, when that happens, just replace it.
    The second one is Heating element assembly. It takes place when air is heated up by the heating element while traveling by the element, which brings about heat in excess. In case of shrt circuit due to the heating element, just replace it.
    Airflow is the third cause, which happens when the ventilation of of the dryer is even partially obstructed, and consequently there is airflow restriction, just clean the ventilation system yearly.
    Number four is cycling thermostat, which consists of duration of the heat longer than expected. If the thermostat lacks continuity, replace it, and that’s all.
    The fith cause is the felt seal, in this case if there is something wrong with the seal or if there isn’t any, that will keep heat from leaving the dryer drum. So replace it in order to solve the problem.
    Blower wheel is the sixth cause, but the least likely to happen, and here we are talking about shortcomings or obstruction in the blower wheel, which allows overheat. Make sure there’s no obstruction or any other kind of problem with the blower wheel, but if there is any, then replace it.

  12. There are 6 causes of Dryer Overheating. Ordered from most to least likely to occur the causes go as follow:
    1) Most common cause: A short-circuited heating element (which heats up air as it travels through the drum of the dryer). If this is the case, it generates incessant heat. To determine if this is the problem test the continuity of each terminal in the case with a multimeter. If the heating element has continuity with the case then it has short-circuited and should be replaced.
    2) Hot air travels by the element of the heating element assembly. If there’s a short-circuited element test the continuity of the heating element with a multimeter. If it shows no continuity the element must be replaced. Then, try testing the continuity from the terminals to the case as mentioned in cause 1) to determine if the heating element should be replaced.
    3) Obstruction of the dryer’s ventilation causing restricted airflow. Annual cleaning of the ventilation system is recommended.
    4) An uncommon cause could be a faulty cycling thermostat which can keep the heat on for too long causing overheat. Test most commonly faulty parts before testing if there’s lack of continuity of the thermostat with a multimeter and replacing it.
    5) Also an uncommon cause: A damaged or absent Felt Seal which will not allow heat to leave the dryer drum and cause overheat. Check all commonly faulty parts before ensuring that the seal is properly trapping the heat. If all other components work correctly, replace the felt seal.
    6) Obstructed or faulty blower wheel. Remove the dryer vent to check the degree of airflow. If weak, look for obstructions caused by small items drawn into the drum of the dryer. If obstruction is not the problem, rotate the wheel of the fan manually. If it wobbles as it rotates, it should be replaced.

  13. There are 6 causes of Dryer Overheating. Ordered from most to least likely to occur the causes go as follow:
    1) Most common cause: A short-circuited heating element (which heats up air as it travels through the drum of the dryer). If this is the case, it generates incessant heat. To determine if this is the problem test the continuity of each terminal in the case with a multimeter. If the heating element has continuity with the case then it has short-circuited and should be replaced.
    2) Hot air travels by the element of the heating element assembly. If there’s a short-circuited element test the continuity of the heating element with a multimeter. If it shows no continuity the element must be replaced. Then, try testing the continuity from the terminals to the case as mentioned in cause 1) to determine if the heating element should be replaced.
    3) Obstruction of the dryer’s ventilation causing restricted airflow. Annual cleaning of the ventilation system is recommended.
    4) An uncommon cause could be a faulty cycling thermostat which can keep the heat on for too long causing overheat. Test most commonly faulty parts before testing if there’s lack of continuity of the thermostat with a multimeter and replacing it.
    5) Also an uncommon cause: A damaged or absent Felt Seal which will not allow heat to leave the dryer drum and cause overheat. Check all commonly faulty parts before ensuring that the seal is properly trapping the heat. If all other components work correctly, replace the felt seal.
    6) Obstructed or faulty blower wheel. Remove the dryer vent to check the degree of airflow. If weak, look for obstructions caused by small items drawn into the drum of the dryer. If obstruction is not the problem, rotate the wheel of the fan manually. If it wobbles as it rotates, it should be replaced.

    Melanie Cascante
    melaniecascante.j@gmail.com

  14. Main causes why your dryer machine overheats:

    Cause 1 – Heating element
    The heating element heats up air as it travels through the drum of the dryer. In order to determine whether the heating element has failed, you must test the continuity of each terminal in the case with a multimeter. If the heating element has continuity with the case, then it has short-circuited, so you must replace it.

    Cause 2 – Heating Element Assembly
    The heating element heats up air as it travels by the element. In order to determine if the heating element has failed, you must test its continuity with a multimeter. You can have two results: the element does not have continuity, or the heating element has continuity with the case, in both cases there has been a short-circuit, so you must replace it.

    Cause 3 – Airflow Problem
    If the ventilation of the dryer is obstructed, it can cause airflow. The ventilation system of a dryer should be cleaned at least annually to ensure the ideal performance.

    Cause 4 – Cycling Thermostat
    The cycling thermostat activates the heat to maintain the temperature of the air. If all the other components work correctly, check the thermostat with a multimeter to determine its continuity, if it does not have continuity, then you must replace it.

    Cause 5 – Felt Seal
    The felt seal is placed in the front and back part of the drum to retain heat by keeping it from escaping the drum. Check the seal of the drum to ensure that it is properly trapping in heat. If all other components work correctly, then you must replace the felt seal.

    Cause 6 – Blower Wheel
    The blower wheel is propelled by the drive motor, drawing air into the drum of the dryer. To determine if the blower wheel is functioning well, remove the dryer vent and evaluate the degree of air flow. If airflow is weak and no obstructions are present, rotate the wheel of the fan with the hand. If the blower’s wheel wobbles you must replace it.

  15. From the most likely to the least, the six causes of the Dryer Overheats are:
    1- Heating element
    Test the continuity of each terminal in the case with a multimeter. If the heating element has continuity with the case, then it has short-circuited and you must replace it.
    2- Heating Element Assembly
    Check the continuity of the heating element with a multimeter, if it doesn´t have continuity, you must replace it. Then, test the continuity from the terminals to the case. If the heating element has continuity with the case, then it has short-circuited and it needs to be replaced.
    3 – Airflow Problem
    Clean the ventilation system of a dryer at least annually to ensure the ideal performance.
    The next causes are uncommon, so first of all, check the more commonly faulty parts. If the other components work correctly, then follow the instructions:
    4 – Cycling Thermostat
    Measure the continuity of the thermostat with a multimeter and if it does not have continuity, you must replace it.
    5 – Felt Seal
    Check the seal of the drum to ensure that it is properly trapping in heat. If it is faulty, you must replace it.
    6 – Blower Wheel
    Remove the dryer vent and evaluate the degree of air flow. If airflow is weak, check that there are not any other obstructions on the blower wheel. If no obstructions are present, then rotate the wheel of the fan with the hand. If the blower’s wheel wobbles as it rotates, then you must replace it.

  16. There are several reason why the dryer overheats.
    The two most common ones have to do with the heating element, which is in charge of heating up the air that travels through the drum of the dryer and when it fails is usually either because (1) it has short-circuited or because (2) there was a problem during the assembly of this element. In both cases the heating element will continue to heat the air nonstop, which will trigger a dryer overheating. In the first case (1), it is recommended to test the continuity of each terminal in the case with a multimeter and if there is continuity it means that the heating element has short-circuited and needs to be replace. In the second case (2), it is recommended to test first the continuity of the heating element with a multimeter because if there is none than the piece must be replace. But if that´s not the problem then test the continuity from the terminals to the case, if there is continuity the heating element has short-circuited and needs to be replace.
    It could also be a problem with the airflow. If the ventilation is in any way obstructed, even in a small degree, this could lead to a restriction in the airflow within the dryer causing the dryer to take a long time. To avoid this problem is recommended to clean the ventilation system at least once a year.
    Another reason could be a malfunctioning of the cycling thermostat, the piece that activates the heat to maintain the temperature of the air and if it is not working properly will keep heat for a long time leading to a dryer overheat. It is not common that this piece malfunctions, that´s why it is recommended to check first all the above mentioned, but if everything else is working as it should, then check the thermostat with a multimiter to see if there is continuity. If there is none, then the thermostat must be replaced.
    However uncommon, it could also be due to problems with the felt seal. In most of dryers there is a felt seal in the front and in the back of the drum to avoid that the heat escapes the drum and if it is faulty or not present it could lead to an overheating. Since this is also not a common problem it is recommended to check before all the above mentioned issues and after ruling out all the other problems then proceed to change the felt seal.
    And the last case scenario, highly uncommon, could be a problem with the blower wheel, mainly because usually lint, socks and small items could get trapped in this piece or because the sleeve of the blower could be damaged, which will cause the fan to wobble on the axis of the motor. Both reasons could lead to an overheating. To be sure that the blower wheel is working properly it is recommended to remove the dryer vent and pay attention to the degree of air flow, if it is week you should look for obstructions on the wheel. If this is not the case then rotate the wheel of the fan with the hand because if it wobbles it has to be replace.

  17. There are several reasons why your dryer machine may be overheating. They will be listed in order from most frequent to least. The most frequent cause of overheating is the heating element. It heats up the air that travels through the dryer drum. If it short-circuits, it never stops heating up. In order to see if it is working properly, you should test the continuity of each terminal in the case with a multimeter. If it has continuity, it has short-circuited, and must be replaced.
    The heating element assembly is where the hot air travels through. You must check if the heating element is short-circuited by testing its continuity, if it has not, you must replace it. Then, test the continuity from the terminals to the case. If it has, you must replace the heating element assembly.
    Poor airflow may also cause overheat. If the ventilation is obstructed somehow, the dryer will take a longer time. The ventilation system must be cleaned at least once a year.
    The cycling thermostat activates the heat to maintain the temperature of the air. If it is faulty, it can keep heating for a long time, causing overheating. This is uncommon, therefore, before replacing it, check the parts mentioned before. If everything else works correctly, then you must check the continuity of the thermostat. If it has not, it must be replaced.
    Most dryers have a felt seal in the front and rear part of the drum to retain the heat in it. If it is damaged or absent, the heat stays in the drum, causing overheat. Ensure the seal is keeping the heat inside the drum.
    Finally, the blower wheel draws the air inside the drum. Oftentimes, lint, socks and small items escape the lint filter and become trapped in the blower wheel. This may damage the sleeves of the blower wheel, causing the wheel of the fan to wobble. If the blower wheel is obstructed, it can cause the dryer to overheat. To determine if the blower wheel is functioning well, remove the dryer vent and evaluate the degree of air flow. If airflow is weak, check that there are not any other obstructions on the blower wheel. If no obstructions are present, then rotate the wheel of the fan with the hand. If the blower’s wheel wobbles as it rotates, then it must be replaced.

  18. When a dryer overheats there are 6 causes that need to be checked or tested, from the most likely to occur to the least, in order to find a solution. The most common cause is when the heating element heats up air as it travels through the drum of the dryer, if this is the case and is short-circuited, you must replace it. Also, the heating element could heat up air as it travels by the element, test it and see if needs replacement as well. The ventilation of the dryer could be partially obstructed causing overheat, clean it at least annually. The cycling thermostat could keep the heat on for a long time, test if it is faulty and needs replacement. Most dryers have a felt seal in the front and back parts of the drum, if it is damaged or absent can cause overheat, check it. The least common cause is the blower wheel been obstructed or faulty causing the dryer to overheat, check if it is functioning well.

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