LG Washing Machine Is Not Heating [3 Causes & Solutions]


If your LG washing machine is not heating, you’ve come to the right place. This detailed guide lists the causes of this issue, and gives you steps to resolve them…

LG Washing Machine Is Not Heating — Solution

If your LG washing machine is not heating, the following are issues to look for…

1. Faulty Heating Element

If your LG washing machine is not heating, the heating element has most likely failed. Follow the steps below to replace this part in your washing machine…

Front Loaders

Replace the heating element in your front loader LG washing machine by following the steps below…

Step 1. In order to prevent any chances of electrocution or leakage, disconnect your washer’s power cord from the outlet and turn the water taps off before starting this repair.

Step 2. Move your washing machine forwards a bit to get access to the back of the machine. Using your Philips screwdriver, loosen the bolts securing the top panel to the cabinet.

Step 3. Slide the panel backwards a few inches, then lift it off the cabinet. Disconnect the COLD and HOT water supply hoses from the ports at the back of the machine (keep a rag nearby in case water spills).

Step 4. Slide the soap tray out of the dispenser. Press the little tab in the tray to release it from the housing.

Step 5. Take out the bolts at the back of the control panel using a Philips screwdriver. Pry the panel off the cabinet.

Step 6. Disconnect the wire harness attached to the control panel, then set the panel aside. Pry the pump filter access panel open.

Step 7. Pull the emergency drain tube out of the retainers. Use your screwdriver to take out the two bolts securing the housing.

Step 8. Pull the pump filter housing out of the cabinet and set it aside. Loosen the single nut at the bottom of the front panel.

Step 9. Open the door of the machine. Using either a flat-blade screwdriver or needle-nosed pliers, carefully pry the retaining wire off the door boot seal (take care not to puncture the seal).

Step 10. Peel the door boot seal off the front panel. Reach in behind the front panel, then disconnect the wire harness from the door lock assembly..

Step 11. Take out the Philips screws at the top of the front panel. Lift the panel off the cabinet carefully, then set it aside.

Step 12. Tip your washing machine backwards carefully, then set it on the floor (get someone to help you if needed).

Step 13. Disconnect the wire harnesses attached to the heating element at the lower front of the tub (ensure that you note where each plug goes).

Step 14. Using a 10mm socket wrench, loosen the bolt securing the heating element to the tub. Pry the heating element out of the housing using a flat-blade screwdriver.

Step 15. Discard the old heating element, then prepare the new one for installation by unpacking it.

Step 16. Slide the new heating element into the housing, then tighten the bolt using a 10mm socket.

Step 17. Plug each wire harness into its appropriate terminal on the heating element. Carefully lift your washing machine onto its feet.

Step 18. Lift the front panel, then mount it on the cabinet. Using your Philips screwdriver, apply the bolts at the top of the front panel.

Step 19. Apply the nut at the bottom of the front panel. Push the pump filter into the housing, then apply the two screws.

Step 20. Open the door of your machine. Reach in behind the front panel, then plug the wire harness into the door switch.

Step 21. Fit the door boot seal around the front panel. Using a flat-blade screwdriver, fit the outer retaining wire around the door seal.

Step 22. Plug the wire harness into the control panel. Snap the panel onto the front of the cabinet, then apply the bolts at the back.

Step 23. Push the soap tray into the dispenser. Reconnect the COLD and HOT water supply hoses to the ports at the back of the machine.

Step 24. Place the top panel on the cabinet, then use your Philips screwdriver to apply the bolts at the back.

Step 25. Turn the water supply taps back on, then plug the power cord into the outlet. Try running a wash cycle to ensure that the issue has been fixed.

Dryers

Replace a damaged heating element in your LG dryer by following the steps below…

Step 1. In order to prevent electrocution, disconnect the power cord from the outlet before starting this repair.

Step 2. Loosen the bolts at the back of the machine securing the top panel using a Philips screwdriver. Slide the panel backwards a few inches, then lift it off the cabinet.

Step 3. Take out the bolts at the back of the control panel. Pry the panel off the cabinet, then disconnect the wire harness.

Step 4. Disconnect the door switch wire harness from the front panel. Open the door of your machine, then take out the screws at the bottom of the front panel.

Step 5. Take out the nuts at the top of the front panel. Lift the front panel off the cabinet carefully, then set it aside.

Step 6. Use your Philips screwdriver to take out the bolts securing the control panel’s mounting bracket. Lift the bracket off the cabinet and set it aside.

Step 7. Disconnect the moisture sensor wire harness at the bottom of the bulkhead. Detach the wires from the light assembly at the top of the bulkhead.

Step 8. Loosen the nuts securing the bulkhead to the cabinet. Lift the bulkhead off the machine and set it aside.

Step 9. Carefully reach underneath the drum, then push the idler pulley inwards (this will release the tension on the drive belt).

Step 10. Unhook the belt from the idler and motor pulleys. Carefully lift the drum and belt out of the cabinet, then set it aside.

Step 11. Disconnect the wires from the rear high-limit thermostat on the heater assembly. Detach the heating element wire connectors.

Step 12. Use your Philips screwdriver to take out the bolts securing the heating element to the cabinet. Pull the element out of the machine, then set it aside.

Step 13. Prepare your new heating element for installation by unpacking it. Install the new element in the cabinet, then apply the nuts with your Philips screwdriver.

Step 14. Plug the wires into the appropriate terminals on the heating element. Plug the wire harnesses into the rear high-limit thermostat.

Step 15. Carefully lift the belt and drum into the cabinet. Reach underneath the machine, then hook the belt onto the idler and motor pulleys in a zig-zag formation.

Step 16. Rotate the drum by hand to ensure that the belt is properly aligned. Lift the front bulkhead, then place it on the cabinet. Use your Philips screwdriver to tighten the bulkhead screws.

Step 17. Plug the moisture sensor and light assembly wires back in. Place the control panel’s mounting bracket on the cabinet, then apply the nuts to secure it.

Step 18. Lift the front panel, the plug the door switch connector in. Snap the front panel on the cabinet, then apply the bolts at the top.

Step 19. Apply the screws at the bottom of the door opening. Plug the wire connector back into the control panel.

Step 20. Snap the panel onto the mounting bracket, then apply the Philips screws at the back.

Step 21. Place the top panel on the cabinet, then push it forwards. Secure the panel by applying the Philips screws.

Step 22. Plug your appliance into the power outlet, then try running a cycle to ensure that the issue has been fixed.

2. Failed Thermistor

If the thermistor fails, your machine will not be able to properly gauge the water temperature. Follow the steps below to replace this part…

Front Loaders

Follow the steps below to replace a damaged thermistor in your front loader LG washing machine…

Step 1. Disconnect your appliance from the power outlet before starting this repair in order to prevent any chances of electrocution.

Step 2. With someone assisting you, move your washing machine forwards a bit to get access to the back.

Step 3. Loosen the bolts securing the top panel to the cabinet using a Philips screwdriver. Slide the panel panel backwards a few inches, then lift it off the cabinet.

Step 4. Pull the soap tray out, then press the little tab inside to release it from the housing. Loosen the bolts at the back of the control panel.

Step 5. Loosen the two nuts next to the dispenser opening. Pry the control panel off the mounting bracket.

Step 6. Using needle-nosed pliers, pinch the thermistor wire harness retaining clip on the front bracket and release it.

Step 7. Snap the control panel back onto the cabinet, then tighten the two screws next to the dispenser opening.

Step 8. Push the detergent tray into the housing. Apply the bolts at the back of the control panel.

Step 9. Disconnect the wire harness from the thermistor. Using your Philips screwdriver, take out the nuts securing the thermistor to the tub. Pull the sensor off the tub and discard it.

Step 10. Prepare the new temperature sensor for installation by unpacking it. Mount the new sensor on the tub, then apply the bolts using your Philips screwdriver.

Step 11. Plug the wire harness into the new thermistor. Mount the top panel on the cabinet, then push it forwards. Secure the panel by applying the bolts at the back.

Step 12. Plug your washing machine into the power outlet, then try running a wash cycle to ensure that the issue has been fixed.

Top Loaders

Replace a faulty thermistor in your top loader LG washing machine by following the steps below…

Step 1. In order to prevent leakage and electrocution, turn your washing machine’s water supply taps off before starting this repair.

Step 2. Disconnect the COLD and HOT water supply hoses from the ports at the back of the cabinet (ensure that you keep a rag nearby in case water spills).

Step 3. Using pliers, squeeze the retaining clamp securing the outlet hose to the back of the machine. Disconnect the hose from the cabinet.

Step 4. With someone assisting you, tip your washing machine backwards carefully and set it on the floor.

Step 5. Disconnect the wire harness from the thermistor at the bottom of the tub. Loosen the nuts securing the thermistor to the tub.

Step 6. Pull the thermistor out of the machine and discard it. Prepare the new temperature sensor for installation by unpacking it.

Step 7. Mount the new sensor at the bottom of the tub, then tighten the bolts to secure it. Plug the wire harness into the new sensor.

Step 8. Carefully lift your washing machine onto its feet. Reconnect the outlet hose to the port at the back of the cabinet. Slide the retaining clamp into place to secure the hose.

Step 9. Reconnect the COLD and HOT water supply hoses to the corresponding ports at the back of the machine (in order to prevent leakage, ensure that each hose is properly attached).

Step 10. Plug your washing machine into the power outlet, then turn the water supply faucets back on. To ensure that the issue has been fixed test the machine by running a wash cycle.

Dryers

To replace the thermistor in your LG dryer, follow the steps below…

Step 1. Ensure that your appliance is disconnected from the power outlet before starting this procedure, in order to prevent electrocution.

Step 2. With a Philips screwdriver, loosen the bolts at the back of the machine securing the top cover. Pull the panel backwards, then lift it off the machine.

Step 3. Take out the bolts at the back of the control panel. Using a flat-blade screwdriver if needed, pry the panel off the mounting bracket. Detach the wire harness connected to the control panel, then set the panel aside.

Step 4. Disconnect the door switch wire connector from the front panel. Open your machine’s door, then use a Philips screwdriver to take out the nuts at the bottom of the opening.

Step 5. Loosen the bolts at the top of the front panel. Lift the panel off the cabinet, then set it aside.

Step 6. With your Philips screwdriver, take out the nuts securing the control panel’s mounting bracket to the cabinet. Lift the bracket off the machine and set it aside.

Step 7. Disconnect the wires from the light assembly at the top of the bulkhead. Disconnect the moisture sensor connector at the lower section of the bulkhead.

Step 8. Take out the Philips screws securing the bulkhead to the cabinet. Lift the bulkhead out of the cabinet carefully, then set it aside.

Step 9. Reach under the drum. Push the idler pulley inwards a bit in order to release the tension on the drive belt.

Step 10. Unhook the drive belt from the motor pulley and idler pulley. Disconnect the wire connector from the thermistor in the cabinet.

Step 11. Use your Philips screwdriver to take out the bolts securing the thermistor to the machine. Pull the thermistor off, then discard it.

Step 12. Prepare your new temperature sensor for installation by unpacking it. Place the new sensor on the cabinet, then tighten the bolts to secure it.

Step 13. Plug the wire connector into the new thermistor. Lift the drum and belt, then carefully guide them into the drum.

Step 14. Reach under the drum and hook the belt back onto the two pulleys in a zig-zag formation. To ensure that the belt is properly aligned, rotate the drum by hand.

Step 15. Remount the bulkhead onto the drum, then apply the nuts using a Philips screwdriver. Reconnect the moisture sensor and drum light connectors.

Step 16. Place the control panel’s mounting bracket on the machine, then tighten the screws.

Step 17. Lift the front panel, then plug the door switch wire connector in. Secure the front panel by tightening the bolts at the top. Open the door, then apply the screws at the bottom.

Step 18. Plug the wire harness into the control panel. Snap the panel onto the front of the cabinet, then apply the bolts at the back using a Philips screwdriver.

Step 19. Snap the top panel onto the cabinet. Using your Philip screwdriver, apply the bolts at the back.

Step 20. Plug your dryer back into the power outlet. To ensure that the issue has been fixed, test the machine by running a cycle.

3. Damaged Thermal Fuse (Dryers)

Replace a burnt thermal fuse in your LG dryer by following the steps below…

Step 1. Ensure that you disconnect your machine from the power outlet before starting this procedure.

Step 2. From the back of the machine, take out the bolts securing the top cover using a Philips screwdriver. Pull the panel backwards a few inches, then lift it off the cabinet.

Step 3. Using your Philips screwdriver, take out the nuts at the back of the control panel. Pry the panel off the mounting bracket.

Step 4. Detach the wire harness from the control panel, then set the panel aside. Reach into the top of the front panel, then detach the door switch wire harness.

Step 5. Loosen the bolts at the top of the front panel using your Philips screwdriver. Open the dryer’s door, then take out the bolts at the bottom of the opening.

Step 6. Lift the panel off the machine carefully, then set it aside. Disconnect the light assembly wires at the top of the front bulkhead. Take out the bolts securing the control panel’s mounting bracket. Lift the bracket off and set it aside.

Step 7. Disconnect the moisture sensor connector at the bottom of the bulkhead. With your Philips screwdriver, take out the nuts securing the bulkhead to the machine.

Step 8. Reach underneath the drum, then push the idler pulley inwards to release the tension on the drive belt. Unhook the belt from the pulleys.

Step 9. Lift the drum and belt out of the cabinet carefully, then set them aside. Disconnect the wires from the thermal fuse on the heater housing (ensure that you note where each plug goes).

Step 10. Use a Philips screwdriver to take out the nuts securing the thermal fuse to the heater. Pull the fuse off, then discard it.

Step 11. Prepare your new thermal fuse for installation by unpacking it. Place the new thermal fuse on the heater, then apply the nuts to secure it.

Step 12. Plug each connector into its appropriate terminal on the fuse. Lift the drum and drive belt, then carefully guide them into the cabinet.

Step 13. Hook the belt onto the motor and idler pulleys in a zig-zag formation. Ensure that the belt is properly aligned by rotating the drum.

Step 14. Place the front bulkhead on the cabinet, then use your Philips screwdriver to apply the bolts.

Step 15. Plug the light assembly and moisture sensor wire harness back in. Place the control panel’s mounting bracket on the cabinet, then tighten the bolts with your Philips screwdriver.

Step 16. Plug the door switch wire harness into the front panel. Mount the front panel on the cabinet, then tighten the bolts at the top to secure it.

Step 17. Open the dryer’s door, then use your Philips screwdriver to tighten the bolts at the bottom of the opening.

Step 18. Plug the wire harness into the control panel. Snap the panel onto the mounting bracket, then tighten the Philips screws at the back.

Step 19. Mount the top panel on the cabinet and push it forwards. Secure the panel by applying the bolts at the back.

Step 20. Reconnect your appliance to the power outlet, then try running a cycle to ensure that the issue has been fixed.

LG Washing Machine Is Overheating — Solved

If your LG washing machine is overheating, the following are issues to look for…

1. Overloaded Motor

Your washing machine will start to overheat if the motor is overloaded. This issue is caused by putting too many clothes in the drum. If your machine overheats, try reducing the number of clothes in the drum.

2. Damaged Blower Wheel (Dryers)

Replace a damaged blower wheel in your LG dryer by following the steps below…

Step 1. Ensure that your machine is disconnected from the outlet before starting this repair in order to prevent electrocution.

Step 2. From the back of the cabinet, take out the bolts securing the top panel to the machine. Slide the panel backwards a few inches, then lift it off the cabinet.

Step 3. Take out the screws at the back of the control panel. Pry the panel off the support bracket, then disconnect the wire harness.

Step 4. Disconnect the door lock wire harness from the front panel. Open the door of the machine, then take out the nuts at the bottom of the opening.

Step 5. Loosen the bolts at the top of the front panel. Lift the panel off the cabinet carefully, then set it aside.

Step 6. Use your Philips screwdriver to take out the bolts securing the control panel’s mounting bracket. Move the bracket out of place and set it aside.

Step 7. Disconnect the wires from the light assembly at the top of the front bulkhead. Disconnect the moisture sensor connector at the bottom of the bulkhead.

Step 8. Loosen the bolts securing the bulkhead to the front of the drum using a Philips screwdriver. Lift the bulkhead off the cabinet and set it aside.

Step 9. Carefully reach underneath the drum, then push the idler pulley inwards (this will release the tension on the drive belt).

Step 10. Unhook the drive belt from the motor pulley and idler pulley. Lift the belt and drum out of the cabinet, then set them aside.

Step 11. Using your Torx screwdriver, loosen the bolts securing the cover to the blower wheel. Take the cover off and set it aside.

Step 12. Secure the motor shaft using pliers, then loosen the bolt securing the blower wheel using a 1/2 inch socket. Pull the wheel out of the housing, then discard it.

Step 13. Prepare the new blower wheel for installation by unpacking it. Push the new blower into the housing, then apply the 1/2 inch bolt to secure it.

Step 14. Place the cover on the blower wheel, then tighten the bolts using a Torx screwdriver.

Step 15. Lift the belt and drum, then carefully guide them into the cabinet. Reach under the drum, then loop the drive belt around the idler and motor pulleys in a zig-zag formation.

Step 16. Slowly rotate the drum by hand to ensure that the belt is properly aligned. Lift the front bulkhead carefully, then mount it on the cabinet. Secure the bulkhead by tightening the bolts.

Step 17. Plug the moisture sensor wire connector back in. Plug the drum light wire connectors back in. Place the control panel’s mounting bracket on the cabinet, then secure it by applying the screws.

Step 18. Lift the front panel, then plug the door switch wire harness back in. Snap the front panel onto the cabinet, then use your nut-driver to tighten the bolts at the top.

Step 19. Open the door of your machine, then apply the two screws at the bottom of the opening.

Step 20. Plug the wire harness into the control panel. Snap the panel onto the mounting bracket, then apply the bolts at the back using your screwdriver.

Step 21. Place the top panel on the cabinet, then apply the bolts at the back using your Torx screwdriver.

Step 22. Plug your washing machine into the power outlet, then try turning it on to ensure that the issue has been fixed.