{"id":16256,"date":"2025-04-22T09:58:29","date_gmt":"2025-04-22T16:58:29","guid":{"rendered":"https:\/\/www.appliancepartspros.com\/b\/?p=16256"},"modified":"2026-07-14T11:26:32","modified_gmt":"2026-07-14T18:26:32","slug":"how-to-replace-the-heater-assembly-on-an-lg-washing-machine","status":"publish","type":"post","link":"https:\/\/www.appliancepartspros.com\/b\/how-to-replace-the-heater-assembly-on-an-lg-washing-machine\/","title":{"rendered":"How to replace the heater assembly on an LG washing machine"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>If your LG washer isn\u2019t heating water properly, it might be time to replace the heating element\u2014here\u2019s how to install AEG33121501.<\/p>\n","protected":false},"author":3,"featured_media":16338,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"how to replace heater assembly AEG33121501 on an LG washer","_yoast_wpseo_title":"%%title%% %%page%%","_yoast_wpseo_metadesc":"If your LG washer isn\u2019t heating water properly, it might be time to replace the heating element\u2014here\u2019s how to install AEG33121501.","_aviaLayoutBuilderCleanData":"[av_textblock size='' av-medium-font-size='' av-small-font-size='' av-mini-font-size='' font_color='' color='' id='' custom_class='' av_uid='av-me3973jp' admin_preview_bg='']\r\n<span data-sheets-root=\"1\">Is your LG washer failing to heat water properly, leaving your clothes less-than-clean? Don't worry, you can tackle this common issue by replacing the faulty heater assembly, and we've got you covered. With our step-by-step guide and a handy how-to video just below, you'll have your washer back in top condition in no time!<\/span>\r\n[\/av_textblock]\r\n\r\n[av_video src='https:\/\/www.youtube.com\/watch?v=D3MuJjW-zyQ' mobile_image='' attachment='' attachment_size='' format='16-9' width='16' height='9' conditional_play='' id='' custom_class='' av_uid='av-me39gk2j']\r\n\r\n[av_textblock size='' av-medium-font-size='' av-small-font-size='' av-mini-font-size='' font_color='' color='' id='' custom_class='' av_uid='av-me39ehb2' admin_preview_bg='']\r\n<b>Looking for the right part?<\/b><span style=\"font-weight: 400;\"> Enter your appliance model number below to find the exact match and get your appliance running like new again!<\/span>\r\n\r\n<span style=\"font-weight: 400;\">[search]<\/span>\r\n[\/av_textblock]\r\n\r\n[av_image src='https:\/\/www.appliancepartspros.com\/b\/wp-content\/uploads\/2025\/04\/Updated-blog-rectangle-1-14.jpg' attachment='16337' attachment_size='full' copyright='' caption='' styling='' align='center' font_size='' overlay_opacity='0.4' overlay_color='#000000' overlay_text_color='#ffffff' animation='no-animation' hover='' appearance='' link='' target='' title_attr='' alt_attr='' lazy_loading='disabled' id='' custom_class='' av_element_hidden_in_editor='0' av_uid='av-zvwu3k' admin_preview_bg=''][\/av_image]\r\n\r\n[av_textblock size='' av-medium-font-size='' av-small-font-size='' av-mini-font-size='' font_color='' color='' id='' custom_class='' av_uid='av-m9mvvm9t' admin_preview_bg='']\r\n<span style=\"font-weight: 400;\">The <\/span><a href=\"https:\/\/www.appliancepartspros.com\/lg-heater-assembly-aeg33121501-ap4998472.html\"><span style=\"font-weight: 400;\">heater assembly<\/span><\/a><span style=\"font-weight: 400;\"> is responsible for heating up the water inside the washer when a signal is sent to it by the main control board. Over time, the heater may fail and have issues such as the washer failing to heat up water properly and resulting in poor washing. Fortunately, replacing the heater assembly in your LG washer is a relatively quick and straightforward repair. So, let's get started!<\/span>\r\n\r\n<b>Watch here: <\/b><a href=\"https:\/\/www.youtube.com\/watch?v=D3MuJjW-zyQ\"><b>How To: LG\/Kenmore Heater Assembly AEG33121501<\/b><\/a>\r\n\r\n<em><span style=\"font-weight: 400;\">The information in this article may not apply to your specific appliance model. We recommend consulting your manufacturer's documentation or<\/span><a href=\"https:\/\/www.appliancepartspros.com\/repair-help\/\"> <b>contact us<\/b><\/a><span style=\"font-weight: 400;\"> with any questions.<\/span><\/em>\r\n\r\n[lwptoc numeration=\"none\"]\r\n<p style=\"font-size:14.5px;margin:14px 0;font-family:system-ui,-apple-system,sans-serif\"><a href=\"#app-safety-notes\">Full safety notes below<\/a><\/p>\n\n<h2><span style=\"font-weight: 400;\">Tools needed<\/span><\/h2>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Phillips screwdriver<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Flathead screwdriver<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">10mm socket wrench<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Locking pliers\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Towel<\/span><\/li>\r\n<\/ul>\r\n<h2><span style=\"font-weight: 400;\">Safety precautions<\/span><\/h2>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Always power off and unplug your appliance or switch off the circuit breaker before attempting any maintenance or replacement work. This keeps you safe by preventing any risk of injury from electric shock.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Turn off the water supply at the outlet before beginning repairs to any appliance parts that hold water. Have towels ready for any residual water in the system when removing parts.\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Wear insulated work gloves to protect your hands from sharp metal parts, pinching hazards and debris.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take your time and don\u2019t rush while working to prevent accidents and personal injuries.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Work in a well-lit area so you can clearly see and access the interior parts.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Clear your workspace of clutter and other obstacles. Keep children and pets away from the work area.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Never work on internal parts with bare wet hands. Make sure the work area is completely dry.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Check your user manual to see if there are specific installation or safety instructions for your part or appliance.\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Be gentle when handling or removing parts. Excessive force might damage the appliance or cause injury.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Wear safety glasses when working with chemicals, dust or cleaning large debris to prevent injury.\u00a0<\/span><\/li>\r\n<\/ul>\r\n<h2><span style=\"font-weight: 400;\">Replacement steps<\/span><\/h2>\r\n<b>Removal<\/b>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Locate and remove the two lower bracket phillips screws.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pull back the top panel about an inch to disengage it.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lift the top panel off the washer and set it aside.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Locate and remove the two mounting phillips screws on each side of the detergent drawer opening.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Locate the phillips screw at the back of the control panel on the right side and remove it.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pull the top of the control panel up and towards you to unclip it from the washer.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lift the control panel off and place it on top of the washer.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If the wires are too short, release the wire harness from the retaining clip.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Open the pump filter cover at the bottom left corner of the washer.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Unclip the drain hose connected to the pump filter.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Remove the phillips screw that holds the housing in place.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Remove the filter cover housing.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Locate the phillips screw at the bottom of the front panel and remove it.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Open the washer door.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using the flat blade screwdriver, pry off the outer door boot clamp and remove it.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Remove the boot seal from the front panel lip and tuck it in.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Disconnect the harness plug from the door latch assembly.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Close the washer door. Lift the front panel off the bottom hinges and set it aside.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Place a towel and a plastic container on the floor beneath the pump case.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pull out the plug from the pump case and allow any remaining water to drain into the container.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Replace the plug once all the water has drained.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Place a towel under the heater.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using the 10-millimeter socket wrench, remove the nut and the ground wire from the heater.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using the flat blade screwdriver, disconnect the wire from the left side terminal of the heater.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Disconnect the wire from the right side terminal of the heater.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using the 10-millimeter socket wrench, loosen the nut in the center of the heater.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Pull out the old heater assembly from the tub.<\/span><\/li>\r\n<\/ol>\r\n<b>Installation<\/b>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take the new heater assembly and make sure it rests on the support bracket inside the tub.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using the ten-millimeter socket wrench, tighten the central nut on the new heater assembly.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Connect the wire to the left side terminal of the heater.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Install the ground wire on the new heater assembly and tighten the nut.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Connect the wire to the right side terminal of the heater.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Place the front panel back onto the three bottom hinges and align it with the side tabs.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Secure the front panel at the top with screws using the phillips screwdriver.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Open the washer door and connect the door latch harness plug to the switch.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Install the door boot seal over the front panel lip.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Place the outer boot clamp in the groove with the spring at the bottom.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Clamp on locking pliers near the spring.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Hold the clamp with a flat blade screwdriver at two o'clock.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Using the pliers, stretch the spring and help it with the screwdriver, while installing the rest of the clamp into the groove.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Close the washer door. Install the bottom mounting phillips screw.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Put the pump filter housing back in and secure it with a phillips screw.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Clip in the drain hose and close the cover of the pump filter.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Make sure the control panel harness is in the retainer clip.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Install the control panel and clip it in place.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Secure the control panel with two phillips screws at the front on both sides of the detergent drawer and one phillips screw from the back of the panel.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Install the control panel and clip it in place.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Slide the detergent drawer back into its opening.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Place the top panel on the washer and push it forward to lock it in place.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Secure the top panel with the two phillips screws from the rear.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Turn the water supply on. Plug the washer back in.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Power on the washer and check if it is working correctly.\u00a0<\/span><\/li>\r\n<\/ol>\r\n<h2><span style=\"font-weight: 400;\">Additional information<\/span><\/h2>\r\n<span style=\"font-weight: 400;\">Thanks for reading! We hope this guide helped you replace the heater assembly on your LG washer.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">If you still need some replacement parts, grab your model number and head over to <\/span><a href=\"https:\/\/www.appliancepartspros.com\/\"><b>AppliancePartsPros.com<\/b><\/a><span style=\"font-weight: 400;\">. We offer over two million parts and most orders arrive in two business days. If you need some help with finding the right part or placing an order, you can contact our team at 1 (877) 477-7278.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">While you\u2019re waiting for your new part to arrive, you can explore our <\/span><a href=\"https:\/\/www.appliancepartspros.com\/b\/\"><b>DIY blog<\/b><\/a><span style=\"font-weight: 400;\"> and watch thousands of video tutorials on <\/span><a href=\"https:\/\/www.youtube.com\/@appliancepartspros\/videos\"><b>our YouTube channel<\/b><\/a><span style=\"font-weight: 400;\">.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Be sure to follow us on <\/span><a href=\"http:\/\/facebook.com\/appliancepartspros\"><b>Facebook<\/b><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/twitter.com\/applpartspros\"><b>Twitter<\/b><\/a><span style=\"font-weight: 400;\"> and <\/span><a href=\"https:\/\/instagram.com\/appliancepartspros?igshid=OGQ5ZDc2ODk2ZA==\"><b>Instagram<\/b><\/a><span style=\"font-weight: 400;\"> to see our latest repair guides!<\/span>\n\n<div id=\"app-safety-notes\" style=\"border:1px solid #E6E6E6;border-radius:8px;overflow:hidden;margin:22px 0;font-family:system-ui,-apple-system,sans-serif\"><div style=\"background:#1C437C;color:#fff;padding:9px 16px;font-weight:700;font-size:15px\">\u26a1&nbsp;Electrical safety \u2014 before you start<\/div><ul style=\"margin:0;padding:14px 20px 14px 38px;font-size:15px;line-height:1.6;color:#1A1A1A;background:#fff\"><li style=\"margin:6px 0\"><b>Disconnect power<\/b> before you start \u2014 unplug it or switch off the breaker, and <b>confirm it's dead<\/b>.<\/li><li style=\"margin:6px 0\">Follow your <b>local electrical code<\/b>.<\/li><li style=\"margin:6px 0\">Anything involving <b>household wiring, outlets, or the breaker panel<\/b> itself is <b>licensed-electrician territory<\/b>.<\/li><\/ul><\/div>\n[\/av_textblock]\r\n\r\n[av_blog blog_type='posts' categories='9' link='category' blog_style='blog-grid' content_length='content' 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