The dryer doesn't heat up

A home dryer is an indispensable household appliance that helps speed up the drying process of clothes. However, like any other technology, it can have problems. The most common problem is that the dryer is not heating. Today we will tell you why such a defect can occur and will try to help you eliminate it.

Diagnostics to find the problem

There are many reasons for your dryer not heating, and they can be quite unexpected. First of all, you should make sure that the device is free of dust and dirt, and then proceed to a more in-depth diagnosis. You will need to do the following:

• remove the top cover of the dryer;
• find the control module (it looks like a board with many nodes);
• check the resistance at the contacts.

To do this, you will need a multimeter: set it to Ohm resistance mode, and then connect the water level sensor to the first four contacts. The fifth and sixth ones are responsible for the heating element (heating element). If your car has a quick-release lock, then the following five contacts are responsible for its operation; in the case of a standard lock, three contacts. Connector “j1” is responsible for powering the entire module. Call the contacts one by one with the probes of the multimeter, and if the value is zero or infinite, it means the element is faulty.

After successful resistance testing, it is recommended to also check for possible leaks!

Typically, modern dryer models are equipped with a function that automatically turns off the heating element if leaks are detected. However, it is important to note that in such situations the machine will throw an error code. If it is missing, you still need to check this point.

Before you begin, take a close look at the rubber seal on your dryer door. It borders the opening for loading laundry. If you notice cracks, cuts, or tears on the cuff, be sure to replace it. The same applies to the water supply and drainage hoses. Checking them for leaks is as easy as shelling pears: immerse them in a filled bath; if there are holes or cracks in the hoses, bubbles will begin to come out of them.

Checking the seal quality is also an important step in dryer maintenance. In a normally functioning device, moisture should condense and collect in a special compartment. If the housing has lost its seal, moisture will begin to appear on the walls near the device and the air will become humid. These signs indicate the presence of a crack in the housing. You may be able to fix this problem yourself, but we still recommend that you contact a service center for help.

Next, clean the contact surfaces from dirt with an alcohol wipe. Carry out a routine inspection, solder breaks and fix damaged wires. Only after these manipulations can you launch the program and make sure that your “home assistant” is working.

Secondary causes of lack of heating

Your dryer not heating can be due to a variety of reasons. They are often interconnected and require a step-by-step approach to resolve. The problem may be:

• in a small load;
• in an inoperative compressor;
• in a burnt heating element and thermal fuse;
• the power board is faulty;
• in a clogged condensate trap.

One of the key factors affecting a dryer not heating is a faulty heating element. It is responsible for creating the necessary thermal energy. If the element no longer provides sufficient heat during the drying process, wear, burnout, or other damage has occurred.

Defective thermostats can also cause your dryer not to heat the air. Typically, they are responsible for controlling the temperature and turning off the heating element when it exceeds a certain range. If the thermostat is faulty, this can lead to poor temperature regulation, which will negatively affect the heating process.

Another common cause is a blown fuse. This can happen to it due to a short circuit or a defect in the unit itself. The first thing you need to do is disconnect the device from the power supply to prevent all negative consequences. After turning off the machine, you should find the location of the fuse and replace the faulty element with a new one.

To prevent similar situations from happening in the future, it is extremely important to check the network for overloads, make sure that the dryer is properly connected and grounded, and it is also necessary to periodically diagnose the device!

A clogged air duct is another thing to consider. The efficiency of the air exchange system, which is responsible for circulating and removing hot air, directly affects the drying process itself.Obstructions such as dust, fibers or other materials can block air flow and therefore reduce heating efficiency. Regular cleaning and maintenance of the vent system will help keep your dryer functioning properly. To do this you will need:

• remove the filter from the dryer;
• remove all contaminants from the surface of the trap;
• using a brush or vacuum cleaner, remove all the lint that has accumulated inside the filter;
• go to the ventilation hose and carefully disconnect it from both ends.

It is also worth paying attention to this element and checking it for the presence of lint and other obstacles. If too much dirt has accumulated, use a brush or vacuum cleaner with a flexible attachment to remove any remaining residue from the hose. Make sure there are no kinks and nothing obstructs the air flow.

Then you will need to clean the ventilation system itself. To do this you will need the same brush and vacuum cleaner. Thoroughly clean the entire hood, remove any obstacles that could otherwise block the valve, and after all these steps, securely attach the vent hose to the dryer. Double-check the tightness of the connections and make sure there are no leaks or gaps anywhere.

Lack of heat in the dryer can also be caused by faulty timers or control boards. Such important electronic components are responsible for regulating heating cycles and maintaining optimal temperatures. Any breakdown in the operation of these elements can disrupt the functioning of the dryer and deprive it of the ability to heat.

If you follow the instructions, carefully inspect all parts and carefully replace them, you will be quite capable of restoring the heating functionality of the dryer. If you are still unable to independently identify the cause of the problem, we recommend contacting a specialist. He will conduct more detailed diagnostics and eliminate all faults. Remember that regular maintenance and proper operation of your dryer will help avoid many problems and extend its service life.

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