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My Lg dryer not heating I fixed it in 10 minutes

 

Introduction  

A dryer that does not generate heat can cause problems for your everyday schedule. Still, a lot of routine problems can be fixed without a replacement. Let’s investigate these problems and possible fixes.  

A blockage in the dryer’s airflow could be the cause of prolonged drying times if your LG dryer is not heating up properly or is taking too long to dry your clothes. An obstruction in the ductwork or lint accumulation on your air filter can result in blocked airflow. 

Common Problems and Solutions 

 

Problem 01: LG Dryer Thermal Fuse

 

Issue: The thermal fuse serves as a safety device to prevent the dryer from overheating. It is typically located on the blower housing or at the heat source, such as the heating element in electric dryers or at the burner in gas models. A blown thermal fuse is usually a sign of an overheated dryer and indicates a restricted exhaust vent. 

Solution: Test the thermal fuse for continuity using a multimeter. If it lacks continuity the electrical path is broken, and the fuse has blown. When replacing a blown thermal fuse always inspect and ensure that the dryer vent is not restricted. 

 

Problem 02: LG Dryer Drive Motor

 

Issue: Most dryer drive motors include a centrifugal switch that activates a start winding when the motor initiates and closes a heat cycle contact to enable the heat source to function. A faulty centrifugal switch can result in the motor not running or the dryer not heating. 

Solution: Since most centrifugal switches are not sold separately the entire motor needs replacement if the switch is defective. 

 

Problem 03: LG Dryer Gas Valve Solenoid 

Issue: Gas dryers are equipped with two or more gas valve solenoid coils. These coils are responsible for opening the gas valve ports allowing gas to flow into the burner assembly. If a gas valve solenoid fails, your dryer won’t heat. 

Solution: To determine if one or more of the gas valve solenoids have failed you can check the igniter. If the igniter glows and goes out but does not ignite the gas the gas valve solenoid is defective. In such cases it is advisable to replace all the gas valve coils as a set. 

 

Problem 04: Incorrect Cycle Settings 


Issue: Sometimes, the reason your LG dryer is not heating is simply due to incorrect cycle settings. The dryer may have been inadvertently set to a nonheat option. 

Solution: Ensure that the dryer is set to the appropriate heat setting. Double-check the cycle settings to make sure it is configured for heating. 

 

Problem 05: LG Dryer Igniter 


Issue: The igniter plays a crucial role in igniting the gas in the burner assembly. If the igniter is not working the gas will not ignite resulting in your dryer not heating. 

Solution: To determine if the igniter has burned out, use a multimeter to test it for continuity. If the igniter does not have continuity it should be replaced with a new one. 

 

Problem 06: LG Dryer Heating Element 

Issue: The heating element is responsible for warming the air before it enters the dryer drum. Over time this element can burn out causing the dryer not to heat. 

Solution: To check if the heating element has burned out use a multimeter to test it for continuity. If there is no continuity it is time to replace the heating element. 

 

Problem 07: LG Dryer Heating Element Assembly 

Issue: Like the heating element the heating element assembly is responsible for warming the air before it enters the dryer drum. Over time it can also burn out resulting in the dryer not heating. 

Solution: To check if the heating element assembly has burned out, use a multimeter to test it for continuity. If there is no continuity it is advisable to replace the heating element assembly. 

 

Problem 08: LG Dryer Flame Sensor 

Issue: On a gas dryer the flame sensor is responsible for detecting the heat emitted by the flame. If the flame sensor is not working the dryer won’t heat. Before checking the flame sensor ensure that the igniter and thermal fuse are not at fault. 

Solution: To determine if the flame sensor is defective use a multimeter to test the sensor for continuity at room temperature. If the flame sensor does not have continuity at room temperature it should be replaced. 

 

Problem 09: LG Dryer Control Board 

Issue: A dryer’s control board plays a crucial role in controlling the voltage sent to all the appliance’s electrical components. If the board is defective, it may not allow voltage to reach the heating circuit. 

Solution: Inspect the control board for signs of damage or a shorted component. You can also use a multimeter to test for voltage reaching the drive motor after reviewing the dryer’s wiring diagram. 

 

Problem 10: Incoming Power Problem 

Issue: An electric dryer heater requires 220 volts to operate properly. If the incoming voltage is incorrect the dryer can run but may not heat. 

Solution: Ensure that the incoming power supply provides the correct voltage (220 volts) for the electric dryer to operate effectively. 

Problem 11: LG Dryer Thermistor 

Issue: A dryer thermistor is responsible for monitoring the temperature of the burner or heater housing and shutting off the heat once a sufficient temperature is reached. If the thermistor is faulty the dryer may not heat at all. 

Solution: To determine if the thermistor is defective, use a multimeter to test it for continuity. If it fails, this test replacing the thermistor is necessary. 

 

Problem 12: LG Dryer High Limit Thermostat 

Issue: The high limit thermostat monitors the dryer temperature and shuts off the burner if the dryer overheats. If the high limit thermostat is malfunctioning it may shut off the burner even if the dryer is not overheating. 

Solution: Before replacing the high limit thermostat, check more commonly defective parts. If you have determined that all other components are working properly test the thermostat using a multimeter for continuity. If it lacks continuity replace it. 

 

Problem 13: LG Dryer Gas Valve Assembly 

Issue: A dryer gas valve assembly is responsible for opening to allow gas to flow into the burner tube to ignite into a flame heating the air circulated through the dryer drum. If the gas valve assembly is malfunctioning, the dryer may not heat. 

Solution: If you suspect an issue with the gas valve assembly it may need to be inspected and potentially replaced to restore heating functionality. 

 

Problem 14: LG Dryer Cycling Thermostat 

Issue: The cycling thermostat plays a crucial role in regulating the air temperature by cycling the heat on and off. If it is defective, the dryer won’t heat although this is rarely the cause. 

Solution: Before considering a cycling thermostat replacement, it’s a good idea to check other more commonly defective parts. If you have verified that all other components are functioning correctly, you can test the thermostat using a multimeter for continuity. If it doesn’t show continuity, then you should replace it. 

Problem 15: LG Dryer Main Control Board 

Issue: Although quite rare, the main control board may be defective. It controls voltage distribution to various electrical components in the dryer. 

Solution: Before jumping to replace the main control board, it’s advisable to inspect the more commonly problematic parts. If you confirm that all other components are in working order you can replace the main control board. While the control board is not easily tested, you can inspect it for signs of burning or a shorted-out component. 

 

Problem 16: LG Dryer Timer 

Issue: If your dryer is failing to heat it is possible that the timer is defective, though this is a very uncommon scenario. 

Solution: Prior to replacing the timer ensure you have ruled out the more typical issues that could lead to heating problems. If you confirm that all other components are functioning correctly you can test the timer with a multimeter while consulting the wiring diagram. If the timer is indeed found to be defective it should be replaced. 

 

Your Common Asked Questions 

 

Q: Why does my dryer turn but doesn’t heat?  

A: This issue may be related to the thermal fuse heating element or thermostat. Refer to our troubleshooting guide for solutions. 

Q: How do I reset the heating element on my LG dryer?  

A: The heating element should not require a reset. If it is not functioning it may need to be replaced. 

Q: Why is my LG dryer only blowing cold air? 

A: This could be due to a malfunctioning heating element thermostat or thermal fuse. Consult a technician for a diagnosis. 

Q: Why is my tumble dryer not heating up?  

A: This issue can be related to the heating element thermal fuse or thermostat. Refer to our troubleshooting guide for solutions. 

 

Conclusion  

Your LG dryer heating malfunction may be caused by a problem that you can possibly solve by closely identifying these less common issues. By doing this you can avoid the need for an expensive replacement by getting your dryer’s heating function back. 

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