to see if you need a new thermostat. The thermostat monitors the internal temperature of the dryer and shuts it off if it gets too hot. If your thermostat is broken, the burning smell could be due to overheating. Unplug the machine, remove the back panel of the dryer, and remove the small cylindrical or rectangular-shaped thermostat by disconnecting the wires from both sides. Then set your multimeter to the lowest ohm reading (RX1) and place the two probes of the meter to the terminals (on one each, it doesn’t matter which color probe goes on which side).  The terminals are the two metal prongs on either side of the thermostat. Before disconnecting the thermostat wires, take a photo to keep track of which wires go where or jot it down on a notepad. At room temperature, the multimeter should have a reading of zero. If it reads infinity, get it replaced. The heating element looks like a coil (made of nickel and chrome) or series of interconnected coils housed inside a small open-faced box. Unplug the machine and remove the back panel in order to access it. Take it out by unscrewing the sensors located at the top and bottom of the vessel and unhooking the 2 wires located below the bottom screw.  Be sure to inspect each coil. If you see any dark spots (blackening) or broken coils, call a repair service to replace the element. If two adjacent coils are touching (as if they’ve been smashed together like a slinky), it could cause an electrical short and needs to be replaced. You can also use a multimeter to test for proper functioning. Set the multimeter to the continuity setting and press the probes onto the wire terminals (one on each terminal) located at the outside corner of the encasing. If the multimeter beeps, the element is still good. If it makes no sound, the element needs to be replaced. If you have a gas dryer, the heating element is located inside the electrical cabinet on the backside of the dryer. Look for a long white or silver cylindrical tube (the combustion tube) with two or three wires attached. If the wires or old or have come unattached, they may have partially melted and caused the burning smell. The belt loops around the drum, under the pulley, and around the motor pulley. A worn out belt might loosen, causing slippage, friction, and heat (hence the burning smell). Unplug the dryer, slide it away from the wall, and remove the back panel to access the belt. It should be tightly wound around something that looks like a pulley system.  In some models, the belt and motor pulley are located toward the front of the machine. If this is the case, remove the front panel in order to access and inspect the belt. Use your hand to tug on the belt, making sure it remains taught. If you notice any slack, parts that appear melted, or sections that have been rubbed away (revealing the internal fibers), call a professional to replace it. Be careful when inserting your hand into the body of the dryer, the edges of the cabinets and internal casings are sharp! Depending on the make and model of your dryer, the belt will be located either behind the back panel or behind the front bottom panel.
استخدم جهاز القياس المتعدد افحص عنصر التسخين في المجففات الكهربائية بحثًا عن علامات كسر أو حرق. افحص الأسلاك الموصولة إلى عنصر التسخين في مجفف الغاز. اتصل بفني لتبديل الحزام إذا رأيت أي تلف.